MDS 622.03

Wording: Applied science & technology Engineering Mining and related operations Not set Not set

0 Computer science, information & general works 252,013 ℹ️	1 Philosophy & psychology 270,129 🧠	2 Religion 681,242 🙏	3 Society, government, & culture 1,328,382 👫	4 Language 209,883 💬	5 Natural sciences & mathematics 431,918 🔬	6 Applied science & technology 940,635 💡	7 Arts & recreation 1,031,850 🎨	8 Literature & rhetoric 1,436,736 📚	9 History & geography 837,760 🗺️
60 Technology 9,943 💡	61 Medicine & health 306,082 💉	62 Engineering 157,979 🔩	63 Agriculture 88,093 🌱	64 Home economics & family management 172,237 🏠	65 Management & public relations 145,064 👔	66 Chemical engineering 19,470 🚀	67 Manufacturing 8,724 📦	68 Manufacture for specific uses 20,805 🔨	69 Buildings 12,238 👷
620 Mechanical & Civil Engineering 21,480 🔩	621 Applied physics 47,082 🏭	622 Mining and related operations 3,895 🕳	623 Military Vehicles: Land, Air, & Sea 15,890 ⚓	624 Bridges & Tunnels 8,105 🌉	625 Railroads, Subways, Roads 6,655 🛤	626 [Formerly: Canal Engineering] 83	627 Dams, Lighthouses, Drilling Platforms 1,873 🌊	628 Water Treatment & Waste Disposal 7,319 🚽	629 Transportation Vehicles 45,597 🌿
622.0 535	622.1 Prospecting & Treasure Hunting 784	622.2 Drilling & Blasting 155	622.3 Mining by Material Sought 1,636	622.4 35	622.5 14	622.6 27	622.7 113	622.8 64	622.9 2
622.00 3	622.01 12	622.02 60	622.03 7	622.04	622.05 113	622.06 41	622.07 18	622.08 11	622.09 Biography; History By Place 268
622.030	622.031	622.032	622.033	622.034	622.035	622.036	622.037	622.038	622.039 1