APA aipamena

Carruthers,Ian. (1981). The economics of irrigation (3.). ELBS.

Chicago Style aipamena

Carruthers,Ian. The Economics of Irrigation. 3. Liverpool: ELBS, 1981.

MLA aipamena

Carruthers,Ian. The Economics of Irrigation. 3. ELBS, 1981.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.