Melvil Decimal System: 917.931
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Philosophy and Psychology
Mathematics and Science
Arts and Recreation
Biography and History
Geography, Voyages And Travel
Geography and Travels
Maps and Atlases
Ancient World -- Antiquties And Archaeology
Pacific and Polar Regions
Mexico, Central America, And The Caribbean
South Central U.S.
West Coast U.S.
Works under MDS 917.931
- Lake Mead & Hoover Dam: The Story Behind the Scenery by James C. Maxon
- DK Eyewitness Travel : Top 10 : Las Vegas by DK Publishing
- The Last Honest Place in America: Paradise and Perdition in the New Las Vegas (Nation Books) by Marc Cooper
- Compass American Guides: Las Vegas by Deke Castleman
- Hiking Las Vegas: 60 Hikes Within 60 Minutes of the Strip by Branch Whitney
- Las Vegas Little Black Book: A Guy's Guide to the Perfect Vegas Getaway by David DeMontmollin
- Out from Las Vegas by Florine Lawlor
- Access Las Vegas by Richard Saul Wurman
- Weird Las Vegas and Nevada: Your Alternative Travel Guide to Sin City and the Silver State by Joe Oesterle
- Las Vegas: A Photographic Tour by Carol Highsmith
- Lonely Planet Discover Las Vegas (Travel Guide) by Lonely Planet
- Fodor's Las Vegas, Reno, Tahoe by Fodor's
- Lonely Planet Discover Las Vegas by Bridget Gleeson
- Romancing Nevada'S Past: Ghost Towns And Historic Sites Of Eureka, Lander, And White Pine Counties by Shawn Hall
- Old Heart Of Nevada: Ghost Towns And Mining Camps Of Elko County by Shawn Hall
- On the Boulevard--The Best of John L. Smith by John L. Smith
- Insiders' Guide to Las Vegas, 6th: Including North Las Vegas, Henderson, and Boulder City (Insiders' Guide Series) by David Stratton
- Complete Idiot's Guide to Las Vegas by Garman
- Las Vegas Guide (Passport Press travel series) by Ed Kranmar
- Lonely Planet Pocket Las Vegas (Travel Guide) by Lonely Planet
- Chronicles of Old Las Vegas: Exposing Sin City's High-Stakes History (Chronicles Series) by James Roman
- Vegas Confidential: Norm! Sin City's Ace Insider 1,000 Naked Truths, Hot Spots, & Cool Stuff (Las Vegas Review-Journal Book) by Norm Clarke
- All Right, OK, You Win: Las Vegas, City without Clocks by David Spanier
- Ultimate Las Vegas and Beyond (Ultimate guides) by David Stratton
- Berlitz Pocket Guide Las Vegas by James P. Reza
- Las Vegas: A Pictorial Celebration by Michael S. Green
- Las Vegas For Dummies by Rick Garman
- Las Vegas: Then and Now® by Su Kim Chung
- Las Vegas Little Red Book: A Girl's Guide to the Perfect Vegas Getaway by Molly Sullivan
- Fear of Hat Loss in Las Vegas by Brendon Burns
- Hiking Las Vegas: The All-in-one Guide to Exploring Red Rock Canyon, Mt. Charleston, and Lake Mead by Branch Whitney
- Frommer's Las Vegas by Night by John Villani
- The Cheapskate's Guide to Las Vegas by Connie Emerson
- Fun with the Family Las Vegas by Lynn Goya
- Quick Escapes Las Vegas, 2nd: Getaways from the Neon City (Quick Escapes Series) by Heidi Knapp Rinella
- Torrent in the desert by Weston Lee
- Insiders' Guide to Las Vegas, 4th (Insiders' Guide Series) by David Stratton
- Travellers Las Vegas, 3rd: Guides to destinations worldwide (Travellers - Thomas Cook) by Julie Mundy
- Insight Guides Smart Guide Las Vegas by Richard Harris
- The Showgirl Next Door: Holly Madison's Las Vegas by Holly Madison
- Las Vegas in Photographs by Scott Tharler
- Frommer's EasyGuide to Las Vegas 2017 (Easy Guides) by Grace Bascos
- Moon Handbooks Las Vegas by Rick Garman
- Las Vegas and Laughlin Nevada by Auto Club S Cal
- Open Road's Best of Las Vegas, 1st Edition (Open Road Travel Guides Las Vegas Guide) by Avery Cardoza
- Pocket Rough Guide Las Vegas by Rough Guides
- Modern Marvels: Hoover Dam (2006)
- The Unofficial Guide to Las Vegas 2016 by Bob Sehlinger
- The Cheapskate's Guide to Vegas Revised ed: Hotels, Gambling, Food, Shows, and More by Connie Emerson
- Las Vegas by Deke Castleman
MDS classes with significant recommendations overlap, excluding ones under the same top-level class.
What is MDS?
Melvil stands for "Melvil Decimal System," named after Melvil Dewey, the famous librarian. Melvil Dewey invented his Dewey Decimal System in 1876, and early versions of his system are in the public domain.
More recent editions of his system are in copyright, and the name "Dewey," "Dewey Decimal," "Dewey Decimal Classification" and "DDC" are registered trademarked by OCLC, who publish periodic revisions.
LibraryThing's MDS system is based on the classification work of libraries around the world, whose assignments are not copyrightable. MDS "scheduldes" (the words that describe the numbers) are user-added, and based on public domain editions of the system.
The Melvil Decimal System is NOT the Dewey Decimal System of today. Wordings, which are entered by members, can only come from public domain sources. The base system is the Free Decimal System, a public domain classification created by John Mark Ockerbloom. Where useful or necessary, wording comes from the 1922 edition of the Dewey Decimal System. Language and concepts may be changed to fit modern tastes, or to better describe books cataloged. Wordings may not come from in-copyright sources.