APA (7th ed.) Citation

Petersen, A. (1946). Capital and labor (4. printing.). New York Labor News.

Chicago Style (17th ed.) Citation

Petersen, Arnold. Capital and Labor. 4. printing. New York, NY: New York Labor News, 1946.

MLA (9th ed.) Citation

Petersen, Arnold. Capital and Labor. 4. printing. New York Labor News, 1946.

Warning: These citations may not always be 100% accurate.