The Grove Dictionary of Art This includes a special section on photography vol. 24 pgs. 646-685. N 31 .D5 1996 v. 24 (Located on the Index Table to the right when you walk in the door) Also available online in E-ReferenceFocal Point Encyclopedia of Photography Michael Peres TR 9 .F6 2007 Fine Arts Library Reference Collection Also available online as an e-book.
Encyclopedia of 19th Century Photography John Hannavy TR 9 .H25 2008 v. 1-2 Fine Arts Library Reference CollectionEncyclopedia of 20th Century Photography Lynne Warren TR 642 .E5 2006 v. 1-3 Fine Arts Library Reference Collection