Gaya APA

International Encyclopedia of the Social Sciences Volumes 15, 16 and 17 : Complete and Unabridged. (1972). New York: The Macmillan Company & The Free Press.

Gaya MLA

International Encyclopedia of the Social Sciences Volumes 15, 16 and 17 : Complete and Unabridged. . New York: The Macmillan Company & The Free Press, 1972. Text.