@book{58815,
	author = {Bingham, Robert C and Walstad, William B},
	title = {Study guide to accompany McConnell and Brue microeconomics. (12th ed.)},
	publisher = {McGraw-Hill},
	year = {1993},
	address = {New York:},
	edition = {12th ed.},
	note = {To accompany: Micro-economics, by McConnell and Brue}
}