Cita APA (7th ed.)
Gillett, P. (1989). Algebra and trigonometry. Scott, Foresman.
Cita Chicago (17th ed.)
Gillett, Philip. Algebra and Trigonometry. Glenview, Ill.: Scott, Foresman, 1989.
Cita MLA (9th ed.)
Gillett, Philip. Algebra and Trigonometry. Scott, Foresman, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.