@book{49199,
	author = {Keat, Paul G. and Young, Philip K.Y.,},
	title = {Managerial economics : beconomic tools for today's    decision makers /},
	publisher = {Pearson Prentice Hall,},
	year = {c2006},
	address = {Upper Saddle River, N.J. :},
	edition = {9th ed.}
}