Thurow, L. C. (1970). Investment in human capital. Wadsworth publishing company.
Chicago Style aipamenaThurow, Lester C. Investment in Human Capital. California: Wadsworth publishing company, 1970.
MLA aipamenaThurow, Lester C. Investment in Human Capital. Wadsworth publishing company, 1970.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.