APA aipamena

Galenson, D. W., & Weinberg, B. A. (1999). Age and the quality of work: The case of modern American painters. National Bureau of Economic Research.

Chicago Style aipamena

Galenson, David W., and Bruce A. Weinberg. Age and the Quality of Work: The Case of Modern American Painters. Cambridge: National Bureau of Economic Research, 1999.

MLA aipamena

Galenson, David W., and Bruce A. Weinberg. Age and the Quality of Work: The Case of Modern American Painters. National Bureau of Economic Research, 1999.