APA (7th ed.) Citation

O'Brien, R. W. (1949). Readings in general sociology. Pacific Books.

Chicago Style (17th ed.) Citation

O'Brien, Robert W. Readings in General Sociology. Palo Alto, Calif.: Pacific Books, 1949.

MLA (9th ed.) Citation

O'Brien, Robert W. Readings in General Sociology. Pacific Books, 1949.