Gaya APA

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

Gaya MLA

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