APA (7th ed.) Citation

Merrill, F. E. (1950). Social problems ([1st ed.].). Knopf.

Chicago Style (17th ed.) Citation

Merrill, Francis E. Social Problems. [1st ed.]. New York: Knopf, 1950.

MLA (9th ed.) Citation

Merrill, Francis E. Social Problems. [1st ed.]. Knopf, 1950.