APA (7th ed.) Citation

Cummins, E. E. (1932). The labor problem in the United States. D. Van Nostrand Company, Inc.

Chicago Style (17th ed.) Citation

Cummins, E. E. The Labor Problem in the United States. New York: D. Van Nostrand Company, Inc, 1932.

MLA (8th ed.) Citation

Cummins, E. E. The Labor Problem in the United States. D. Van Nostrand Company, Inc, 1932.