Gaya APA

Sills, D, L. (1972). International Encyclopedia of The Social Sciences Volume 1 dan 2 / David L. Sills . New York: The Macmillan Company r The Free Press.

Gaya MLA

Sills, David, L.. "International Encyclopedia of The Social Sciences Volume 1 dan 2 / David L. Sills". New York: The Macmillan Company r The Free Press, 1972. Text.