@book{20219,
	author = {McConnell R.Campbell,Stanley L.Bruce &Sean M.Flynn and McConnell R.Campbell,Stanley L.Brue &Sean M.Flyn},
	title = {McConnell Brue Flynn Economics},
	publisher = {McGraw-Hill },
	year = {2012},
	address = {Newyork},
	edition = {AP ED}
}