Cita APA (7th ed.)

Safier, F. (2009). Theory and problems of precalculus (2nd ed.). McGraw-Hill.

Cita Chicago (17th ed.)

Safier, Fred. Theory and Problems of Precalculus. 2nd ed. New York, NY: McGraw-Hill, 2009.

Cita MLA (9th ed.)

Safier, Fred. Theory and Problems of Precalculus. 2nd ed. McGraw-Hill, 2009.