APA (7th ed.) Citation

Schultz, T. W. (1971). Investment in human capital: The role of education and of research. Free Press.

Chicago Style (17th ed.) Citation

Schultz, Theodore William. Investment in Human Capital: The Role of Education and of Research. New York: Free Press, 1971.

MLA (9th ed.) Citation

Schultz, Theodore William. Investment in Human Capital: The Role of Education and of Research. Free Press, 1971.