APA aipamena

Wykstra, R. A. (1971). Education and the economics of human capital. Collier-Macmillan, Free Press.

Chicago Style aipamena

Wykstra, Ronald A. Education and the Economics of Human Capital. London: New York: Collier-Macmillan, Free Press, 1971.

MLA aipamena

Wykstra, Ronald A. Education and the Economics of Human Capital. Collier-Macmillan, Free Press, 1971.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.