Cita APA (7a ed.)

Sobel, M. A., & Lerner, N. (1979). Algebra and trigonometry: A pre-calculus approach (2nd. ed.). Prentice-Hall.

Cita Chicago Style (17a ed.)

Sobel, Max A., y Norbert Lerner. Algebra and Trigonometry: A Pre-calculus Approach. 2nd. ed. New Jersey: Prentice-Hall, 1979.

Cita MLA (8a ed.)

Sobel, Max A., y Norbert Lerner. Algebra and Trigonometry: A Pre-calculus Approach. 2nd. ed. Prentice-Hall, 1979.