APA (7th ed.) Citation

Roberts, H. S. (1944). The rubber workers: Labor organization and collective bargaining in the rubber industry. Harper.

Chicago Style (17th ed.) Citation

Roberts, Harold Selig. The Rubber Workers: Labor Organization and Collective Bargaining in the Rubber Industry. New York, London: Harper, 1944.

MLA (9th ed.) Citation

Roberts, Harold Selig. The Rubber Workers: Labor Organization and Collective Bargaining in the Rubber Industry. Harper, 1944.