APA (7th ed.) Citation

Gustafson, R. D., & Frisk, P. D. (1984). Plane trigonometry (2. ed.). Brooks, Cole.

Chicago Style (17th ed.) Citation

Gustafson, Roy D., and Peter D. Frisk. Plane Trigonometry. 2. ed. Monterey, Calif: Brooks, Cole, 1984.

MLA (9th ed.) Citation

Gustafson, Roy D., and Peter D. Frisk. Plane Trigonometry. 2. ed. Brooks, Cole, 1984.

Warning: These citations may not always be 100% accurate.