Παραπομπή APA

(1968). International encyclopedia of the social sciences. Volume 13, 14. Collier Macmillan Publishers.

Παραπομπή Chicago Style

International Encyclopedia of the Social Sciences. Volume 13, 14. New York: Collier Macmillan Publishers, 1968.

Παραπομπή MLA

International Encyclopedia of the Social Sciences. Volume 13, 14. Collier Macmillan Publishers, 1968.