APA (7th ed.) Citation

Fogel, R. W. (2003). Changes in the process of aging during the twentieth century: Findings and procedures of the Early Indicators project. National Bureau of Economic Research.

Chicago Style (17th ed.) Citation

Fogel, Robert William. Changes in the Process of Aging During the Twentieth Century: Findings and Procedures of the Early Indicators Project. Cambridge, Mass: National Bureau of Economic Research, 2003.

MLA (9th ed.) Citation

Fogel, Robert William. Changes in the Process of Aging During the Twentieth Century: Findings and Procedures of the Early Indicators Project. National Bureau of Economic Research, 2003.