Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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