APA (7th ed.) Citation

Oneal, J. (1921). The workers in American history (4th ed., rev. and enl.). The Rand school of social science.

Chicago Style (17th ed.) Citation

Oneal, James. The Workers in American History. 4th ed., rev. and enl. [New York]: The Rand school of social science, 1921.

MLA (9th ed.) Citation

Oneal, James. The Workers in American History. 4th ed., rev. and enl. The Rand school of social science, 1921.