Campbell,Donald. (1995). Design and operation of smallholder irrigation in south Asia. World Bank.
Chicago Style aipamenaCampbell,Donald. Design and Operation of Smallholder Irrigation in South Asia. Washington: World Bank, 1995.
MLA aipamenaCampbell,Donald. Design and Operation of Smallholder Irrigation in South Asia. World Bank, 1995.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.