Cita APA (7th ed.)
Cohen, D. (1992). College algebra (3rd ed.). West Publishing Co..
Cita Chicago (17th ed.)
Cohen, David. College Algebra. 3rd ed. New York: West Publishing Co., 1992.
Cita MLA (9th ed.)
Cohen, David. College Algebra. 3rd ed. West Publishing Co., 1992.
Atenció: Aquestes cites poden no estar 100% correctes.