Sakthivadivel, R. Nature of small tank cascade systems and a framework for rehabilitation of tanks within them - Colombo International Irrigation Management Institute 1996 - xi,54p. 21cm - IIMI country paper, Sri Lanka No. 13 . ISBN: 9290903244 Subjects--Topical Terms: WATER CONSERVATIONSPECIFIC TECHNIQUES Dewey Class. No.: 631.7 / NAT