Dyfyniad APA

Bellamy, R. F. (1956). A preface to the social sciences. McGraw-Hill.

Dyfyniad Arddull Chicago

Bellamy, Raymond F. A Preface to the Social Sciences. New York: McGraw-Hill, 1956.

Dyfyniad MLA

Bellamy, Raymond F. A Preface to the Social Sciences. McGraw-Hill, 1956.

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