@book{214020,
	author = {McConnell, Campbell R. and Brue, Stanley L., |d 1945-},
	title = {Microeconomics : principles, problems, and policies / Campbell R. McConnell, Stanley L. Brue, Sean M. Flynn.},
	series = {The McGraw-Hill series in economics},
	address = {Boston : McGraw-Hill Irwin, c2009.},
	edition = {18th ed.}
}