APA (7th ed.) Citation

Northcott, J. A., & Larsen, H. D. (1950). Plane and spherical trigonometry (Rev. ed.). Rinehart.

Chicago Style (17th ed.) Citation

Northcott, John Arthur, and Harold Daniel Larsen. Plane and Spherical Trigonometry. Rev. ed. New York: Rinehart, 1950.

MLA (9th ed.) Citation

Northcott, John Arthur, and Harold Daniel Larsen. Plane and Spherical Trigonometry. Rev. ed. Rinehart, 1950.