APA aipamena

(1977). Land and water development (Selected literature 1976). The Netherland: ILRI.

Chicago Style aipamena

Land and Water Development (Selected Literature 1976). The Netherland: ILRI, 1977.

MLA aipamena

Land and Water Development (Selected Literature 1976). The Netherland: ILRI, 1977.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.