Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.