APA (7th ed.) Citation

Bahr, L. S., & Johnston, B. M. (1993). Collier's encyclopedia: With bibliography and index. P.F. Collier.

Chicago Style (17th ed.) Citation

Bahr, Lauren S., and Bernard M.A Johnston. Collier's Encyclopedia: With Bibliography and Index. New York: P.F. Collier, 1993.

MLA (9th ed.) Citation

Bahr, Lauren S., and Bernard M.A Johnston. Collier's Encyclopedia: With Bibliography and Index. P.F. Collier, 1993.