Gaya APA

Hoffmann, L, D., Bradley, G, L. (1992). Calculus : for business, economics, and the social and life sciences . New York: McGraw-Hill, Inc..

Gaya MLA

Hoffmann, Lawrence, D.., Bradley, Gerald, L.. "Calculus : for business, economics, and the social and life sciences". New York: McGraw-Hill, Inc., 1992. Text.