APA (7 वां संस्करण) प्रशस्ति पत्र
Haveman, R. H., Bershadker, A., & Schwabish, J. A. (2003). Human capital in the United States from 1975 to 2000: Patterns of growth and utilization. W.E. Upjohn Institute for Employment Research.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Haveman, Robert H., Andrew Bershadker, और Jonathan A. Schwabish. Human Capital in the United States from 1975 to 2000: Patterns of Growth and Utilization. Kalamazoo, Mich.: W.E. Upjohn Institute for Employment Research, 2003.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Haveman, Robert H., et al. Human Capital in the United States from 1975 to 2000: Patterns of Growth and Utilization. W.E. Upjohn Institute for Employment Research, 2003.
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