Cita APA (7th ed.)

Barnett, R. A., & Ziegler, M. R. (1999). College algebra (5th ed.). McGraw-Hill.

Cita Chicago (17th ed.)

Barnett, Raymond A., i Michael R. Ziegler. College Algebra. 5th ed. Boston: McGraw-Hill, 1999.

Cita MLA (9th ed.)

Barnett, Raymond A., i Michael R. Ziegler. College Algebra. 5th ed. McGraw-Hill, 1999.