@book{6230,
	author = {Ivins, William Mills, and Cohn, Marjorie B.},
	title = {How Prints Look: Photographs With Commentary},
	publisher = {Beacon Press,},
	year = {c1942.},
	address = {Boston :},
	edition = {Rev. and expanded ed. },
	url = {http://www.loc.gov/catdir/description/hm031/86047865.html}
}