APA (7th ed.) Citation

Webb, S., & Webb, B. (1932). Methods of social study. Longmans, Green and co..

Chicago Style (17th ed.) Citation

Webb, Sidney, and Beatrice Webb. Methods of Social Study. London, New York [etc.]: Longmans, Green and co., 1932.

MLA (9th ed.) Citation

Webb, Sidney, and Beatrice Webb. Methods of Social Study. Longmans, Green and co., 1932.