@book{3967,
	author = {BARNETT. R. A. and ZIEGIER. M. R & BYLEEN. K. E},
	title = {College Mathematics; for Business, Economics, Life sciences, and Social Sciences.},
	publisher = {BARNETT. R. A,},
	year = {2015.},
	address = {New york,},
	edition = {13th Ed.}
}