@book{24447,
	author = {HOFFMANN, LAIRENCE D. and BRADLEY, GERALOLL.},
	title = {CALCULUS FOR BUISNESS, ECONOMICES, AND THE SOCIAL AND LIFE SCIENCES / },
	publisher = {MEGRAW-HILL, JNC. ، },
	year = {1992},
	address = {[S.N] : }
}