Gaya APA

Hoffmann, L, D., Bradley, G, L. (1992). Calculus for business, economics, and the social and life sciences (5th ed.). United States of America: McGraw-Hill.

Gaya MLA

Hoffmann, Laurence, D.., Bradley, Gerald, L.. "Calculus for business, economics, and the social and life sciences". 5th ed. United States of America: McGraw-Hill, 1992. Printed Book.