APA (7th ed.) Citation

Long, C. D. (1944). The labor force in wartime America: [by] Clarence D. Long. National Bureau of Economic Research.

Chicago Style (17th ed.) Citation

Long, Clarence D. The Labor Force in Wartime America: [by] Clarence D. Long. New York: National Bureau of Economic Research, 1944.

MLA (9th ed.) Citation

Long, Clarence D. The Labor Force in Wartime America: [by] Clarence D. Long. National Bureau of Economic Research, 1944.