Cita APA (7th ed.)
Cohen, D. (1986). Algebra and trigonometry. West Pub. Co..
Cita Chicago (17th ed.)
Cohen, David. Algebra and Trigonometry. St. Paul, MN: West Pub. Co., 1986.
Cita MLA (9th ed.)
Cohen, David. Algebra and Trigonometry. West Pub. Co., 1986.
Atenció: Aquestes cites poden no estar 100% correctes.