Critchley, W. (1992). Water harvesting for plant production. World Bank.
Chicago Style aipamenaCritchley, William. Water Harvesting for Plant Production. Washington, D.C: World Bank, 1992.
MLA aipamenaCritchley, William. Water Harvesting for Plant Production. World Bank, 1992.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.