APA (7th ed.) Citation

Watkins, G. S. (1929). Labor problems (Rev. ed.). Crowell ; Pitman.

Chicago Style (17th ed.) Citation

Watkins, Gordon S. Labor Problems. Rev. ed. New York : London: Crowell ; Pitman, 1929.

MLA (8th ed.) Citation

Watkins, Gordon S. Labor Problems. Rev. ed. Crowell ; Pitman, 1929.