Cita APA

Halsey, D. W., & Shores, L. (1978). Collier's encyclopedia V.18: With bibliography and index. Macmillan Educational Corporation.

Chicago Edition Citation

Halsey, D William, i Louis Shores. Collier's Encyclopedia V.18: With Bibliography and Index. New York: Macmillan Educational Corporation, 1978.

Cita MLA

Halsey, D William, i Louis Shores. Collier's Encyclopedia V.18: With Bibliography and Index. Macmillan Educational Corporation, 1978.