Gaya APA

Sills, D, L. (1991). International Encyclopedia of the Social Sciences Volumes 19 : Complete and Unabridged (Cet. 10). New York: The Macmillan Company & The Free Press.

Gaya MLA

Sills, David, L.. "International Encyclopedia of the Social Sciences Volumes 19 : Complete and Unabridged". Cet. 10 New York: The Macmillan Company & The Free Press, 1991. Text.