Gaya APA

Swanson, C, P., Kahan, S. (1981). Intermediate algebra . New York: New York: Harcourt Brace Jovanovich; 1981.

Gaya MLA

Swanson, Carl, P.., Kahan, Steven. "Intermediate algebra". New York: New York: Harcourt Brace Jovanovich; 1981, 1981. Text.