Gaya APA

HOFFMANN, L, D., Bradley, G, L. (1940). CALCULUS : For Business, Economics, and the Social and Lifr Sciences (Edisi 8). Amerika: Mc Graw Hill.

Gaya MLA

HOFFMANN, Laurence, D.., Bradley, Gerald, L.. "CALCULUS : For Business, Economics, and the Social and Lifr Sciences". Edisi 8 Amerika: Mc Graw Hill, 1940. Text.