Cita APA (7th ed.)

Halsey, W. D., & Johnston, B. M. (1988). Collier's encyclopedia: With bibliography and index. Macmillan Educational Co. P.F. Collier.

Cita Chicago (17th ed.)

Halsey, William Darrach, i Bernard M.A Johnston. Collier's Encyclopedia: With Bibliography and Index. New York, London : New York: Macmillan Educational Co. P.F. Collier, 1988.

Cita MLA (9th ed.)

Halsey, William Darrach, i Bernard M.A Johnston. Collier's Encyclopedia: With Bibliography and Index. Macmillan Educational Co. P.F. Collier, 1988.