na INLIS000000000013483 Ind 0010-1118013483 Small irrigation tanks as a source of Malaria mosquito vectors: a study in North Central Sri Lanka INTERNATIONAL WATER MANAGEMENT INSTITUTE Felix A. Amerasinghe ... [et al.] Colombo IWMI 2001 28 p. : ill. ; 28 cm.-- 28 p. : ill. ; 28 cm.-- ISBN 92-9090-461-5 Sr. 631.67 IRRIGATION WATERSHEDS MALARIA SRI LANKA 463/MS/2002