APA (7th ed.) Citation

Dressler, I., & Rich, B. (1975). Trigonometry. AMSCO School Publications, Inc.

Chicago Style (17th ed.) Citation

Dressler, Isidore, and Barnett Rich. Trigonometry. New York, N.Y: AMSCO School Publications, Inc, 1975.

MLA (9th ed.) Citation

Dressler, Isidore, and Barnett Rich. Trigonometry. AMSCO School Publications, Inc, 1975.