APA (7th ed.) Citation

Ellwood, C. A. (1932). Social problems, a sociology. Cincinnati [etc.] American book company.

Chicago Style (17th ed.) Citation

Ellwood, Charles Abram. Social Problems, a Sociology. New York: Cincinnati [etc.] American book company, 1932.

MLA (9th ed.) Citation

Ellwood, Charles Abram. Social Problems, a Sociology. Cincinnati [etc.] American book company, 1932.