APA-referens

Spiegel, M. R. (1956). Schaum's outline theory and problems of college algebra. Mcgraw company.

Chicago-stil citat

Spiegel, Murray R. Schaum's Outline Theory and Problems of College Algebra. New York: Mcgraw company, 1956.

MLA-referens

Spiegel, Murray R. Schaum's Outline Theory and Problems of College Algebra. Mcgraw company, 1956.