@book{6307,
	author = {Birkhoff, Garrett. and Lane, Saunders Mac.},
	title = {A Survey of Modern Algebra},
	publisher = {Universities Press,},
	year = {1977.},
	address = {[S.l.] :},
	edition = {4th ed.},
	url = {http://www.amazon.com/exec/obidos/ASIN/B001EMEGSU/chopaconline-20}
}