APA (7th ed.) Citation

Columbia University, Bridgwater, W., & Sherwood, E. J. (1950). The Columbia encyclopedia (2nd ed.). P. F. Collier & Sons.

Chicago Style (17th ed.) Citation

Columbia University, William Bridgwater, and Elizabeth J. Sherwood. The Columbia Encyclopedia. 2nd ed. New York: P. F. Collier & Sons, 1950.

MLA (9th ed.) Citation

Columbia University, et al. The Columbia Encyclopedia. 2nd ed. P. F. Collier & Sons, 1950.