ebrary, Inc, Freeman, R. B., & Goroff, D. L. (2009). Science and engineering careers in the United States: An analysis of markets and employment. University of Chicago Press.
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Chicago-čujuhus (17. p.)
ebrary, Inc, Richard B. Freeman, juo Daniel L. Goroff. Science and Engineering Careers in the United States: An Analysis of Markets and Employment. Chicago: University of Chicago Press, 2009.
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MLA-čujuhus (9. p.)
ebrary, Inc, et al. Science and Engineering Careers in the United States: An Analysis of Markets and Employment. University of Chicago Press, 2009.
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