APA (7th ed.) Citation

Niles, N. O. (1976). Plane trigonometry (3d. ed.). Wiley.

Chicago Style (17th ed.) Citation

Niles, Nathan O. Plane Trigonometry. 3d. ed. New York: Wiley, 1976.

MLA (9th ed.) Citation

Niles, Nathan O. Plane Trigonometry. 3d. ed. Wiley, 1976.