Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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