Παραπομπή APA

(1968). International encyclopedia of the social sciences. Volume 11, 12. The Macmillan Company The Free Press.

Παραπομπή Chicago Style

International Encyclopedia of the Social Sciences. Volume 11, 12. New York: The Macmillan Company The Free Press, 1968.

Παραπομπή MLA

International Encyclopedia of the Social Sciences. Volume 11, 12. The Macmillan Company The Free Press, 1968.