APA aipamena

Benham, F. (1961). Economic aid to underdeveloped countries. Oxford University.

Chicago Style aipamena

Benham, Frederic. Economic Aid to Underdeveloped Countries. London: Oxford University, 1961.

MLA aipamena

Benham, Frederic. Economic Aid to Underdeveloped Countries. Oxford University, 1961.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.