Halsey, W. D., & John̈sťon̈, B. (1987). Collier's encyclopedia, with bibliography and index. Crowell-Collier Educational Corp.
Chicago Style (17. basım) AtıfHalsey, Williaṃ Darrach, ve Bern̈ard John̈sťon̈. Collier's Encyclopedia, with Bibliography and Index. New York: Crowell-Collier Educational Corp, 1987.
MLA (9th ed.) AtıfHalsey, Williaṃ Darrach, ve Bern̈ard John̈sťon̈. Collier's Encyclopedia, with Bibliography and Index. Crowell-Collier Educational Corp, 1987.
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