APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Niles, Nathan O. Plane Trigonometry. 3. ed. New York [u.a.]: Wiley, 1976.

MLA (9th ed.) Citation

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