The history of trade unionism,
by Sidney and Beatrice Webb.
APA Citation
Webb, S., Webb, B. (1920). The history of trade unionism. Rev. ed., extended to 1920. New York [etc.]: Longmans, Green.
MLA Citation
Webb, Sidney, 1859-1947, and Beatrice Webb. The History of Trade Unionism. Rev. ed., extended to 1920. New York [etc.]: Longmans, Green, 1920.
Warning: These citations may not always be complete (especially for serials).