Tillman, G. (1981). Environmentally sound small-scale water projects. Coordination in Development ; Volunteers in Technical Assistance.
Dyfyniad Arddull ChicagoTillman, Gus. Environmentally Sound Small-scale Water Projects. [New York, N.Y.] : [Mt. Rainier, Md.]: Coordination in Development ; Volunteers in Technical Assistance, 1981.
Dyfyniad MLATillman, Gus. Environmentally Sound Small-scale Water Projects. Coordination in Development ; Volunteers in Technical Assistance, 1981.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.