APA aipamena

Vassardakis, H. K. (1951). Investment in Human Welfare.

Chicago Style aipamena

Vassardakis, Helen K. Investment in Human Welfare. 1951.

MLA aipamena

Vassardakis, Helen K. Investment in Human Welfare. 1951.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.