APA (7th ed.) Citation

Webb, S., & Webb, B. (1920). The history of trade unionism (Revised edition, extended to 1920.). Longmans, Green and Co..

Chicago Style (17th ed.) Citation

Webb, Sidney, and Beatrice Webb. The History of Trade Unionism. Revised edition, extended to 1920. London: Longmans, Green and Co., 1920.

MLA (9th ed.) Citation

Webb, Sidney, and Beatrice Webb. The History of Trade Unionism. Revised edition, extended to 1920. Longmans, Green and Co., 1920.