SPIEGEL, M. R. (1956). Theory and problems of college algebra. Schaum pub.
Cita Chicago (17th ed.)SPIEGEL, Murray R. Theory and Problems of College Algebra. New York: Schaum pub, 1956.
Cita MLA (9th ed.)SPIEGEL, Murray R. Theory and Problems of College Algebra. Schaum pub, 1956.
Atenció: Aquestes cites poden no estar 100% correctes.