APA (7th ed.) Citation

Horner, D. R. (1968). Trigonometry: A study of certain real functions. Holt, Rinehart and Winston.

Chicago Style (17th ed.) Citation

Horner, Donald R. Trigonometry: A Study of Certain Real Functions. New York: Holt, Rinehart and Winston, 1968.

MLA (9th ed.) Citation

Horner, Donald R. Trigonometry: A Study of Certain Real Functions. Holt, Rinehart and Winston, 1968.