@book{347949,
	author = {Nicholson, Walter.},
	title = {Microeconomic theory :},
	publisher = {South-Western College Pub,},
	year = {2001.},
	address = {[S.l.] :},
	edition = {8th ed.},
	url = {http://www.amazon.com/exec/obidos/ASIN/0030335930/chopaconline-2}
}