APA (7th ed.) Citation

Warner, W. L., & Srole, L. (1945). The social systems of American ethnic groups. Yale U.P..

Chicago Style (17th ed.) Citation

Warner, W. Lloyd, and Leo Srole. The Social Systems of American Ethnic Groups. New Haven: Yale U.P., 1945.

MLA (8th ed.) Citation

Warner, W. Lloyd, and Leo Srole. The Social Systems of American Ethnic Groups. Yale U.P., 1945.