Schultz, T. W. (1981). Investment in human capital: The role of education and of research. The Free Press.
Chicago-viite (17. p.)Schultz, Theodore W. Investment in Human Capital: The Role of Education and of Research. The Free Press, 1981.
MLA-viite (9. p.)Schultz, Theodore W. Investment in Human Capital: The Role of Education and of Research. The Free Press, 1981.
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