Παραπομπή APA

Kent A. (1978). Introduction to reference work vol. 2. Mc-graw-hill Book com.

Παραπομπή Chicago Style

Kent A. Introduction to Reference Work Vol. 2. New York: Mc-graw-hill Book com, 1978.

Παραπομπή MLA

Kent A. Introduction to Reference Work Vol. 2. Mc-graw-hill Book com, 1978.