Dyfyniad APA
(1966). A guide to the social sciences. The new American library.
Dyfyniad Arddull Chicago
A Guide to the Social Sciences. New York: The new American library, 1966.
Dyfyniad MLA
A Guide to the Social Sciences. The new American library, 1966.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.