APA (7th ed.) Citation

Douglas, P. H. (1921). American apprenticeship and industrial education. Columbia university; [etc., etc.].

Chicago Style (17th ed.) Citation

Douglas, Paul H. American Apprenticeship and Industrial Education. New York: Columbia university; [etc., etc.], 1921.

MLA (9th ed.) Citation

Douglas, Paul H. American Apprenticeship and Industrial Education. Columbia university; [etc., etc.], 1921.