Tohutoro APA (7th ed.)

Sobel, M. A., & Lerner, N. (1991). Algebra and trigonometry (4th ed.). Prentice hall.

Tohutoru Kātū Chicago (17th ed.)

Sobel, Max A., me Norbert Lerner. Algebra and Trigonometry. 4th ed. Englewood cliffs: Prentice hall, 1991.

Tohutoro MLA (9th ed.)

Sobel, Max A., me Norbert Lerner. Algebra and Trigonometry. 4th ed. Prentice hall, 1991.