APA-referens (7:e uppl.)
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.
Chicago-referens (17:e uppl.)
Haveman, Robert H., Andrew Bershadker, och 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.
MLA-referens (9:e uppl.)
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.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.