#1 Michael (Michael James) Fitzgerald 1957- is the author of Learning XSLT. Most of the unattributed titles above (with no ISBN and not in WorldCat) are probably articles or presentations by this author.
#2 Michael C. Fitzgerald is the author of Picasso and American Art.
#3 Professor Michael Fitzgerald 1946-, the author of The Genesis Of Artistic Creativity: Asperger's Syndrome And The Arts, is the Henry Marsh Professor of Child and Adolescent Psychiatry at Trinity College, Dublin.
#4 Michael (Mike) Fitzgerald 1951- is the author of Prisoners in Revolt.
#5 Michael (Michael Boynton) Fitzgerald (b. 11 June 1955) is the author of How to Live Sideways: A Guide for Bahai Kids.
#6 Michael Fitzgerald 1950- is the author of Universal Pictures.
#7 Michael Fitzgerald 1949- is the author of Storm Troopers of Satan.
#8 Michael Fitzgerald 1937- is the author of Mensch, Welt, Staat im Islam.
#9 Michael Oren Fitzgerald 1949- is the author of Frithjof Schuon: Messenger of the Perennial Philosophy.