Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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