@book{107077,
	author = {Barnett, Raymond A. and Ziegler, Michael R.},
	title = {Applied mathematics for business, economics, life sciences, and social sciences},
	publisher = {Dellen Pub. Co.},
	year = {c1991.},
	series = {College mathematics series},
	address = {San Francisco},
	edition = {4th ed.},
	note = {Includes indexes.}
}