Campbell,Donald. (1995). Design and operation of smallholder irrigation in south Asia. World Bank.
Dyfyniad Arddull ChicagoCampbell,Donald. Design and Operation of Smallholder Irrigation in South Asia. Washington: World Bank, 1995.
Dyfyniad MLACampbell,Donald. Design and Operation of Smallholder Irrigation in South Asia. World Bank, 1995.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.