Anuradhapura tanks - CEA Colombo 1994 - 79 - Sri Lanka Environmental Protection Tanks Reservoirs - Wetland site report . Wetland conservation project - Sri Lanka Nat. Bib. No.: 5384 Nat. Bib. Agency Control No.: 621.647(548.7)CEN S.L Subjects--Topical Terms: Engineering & Technology Universal Decimal Class. No.: 621.647(548.7) 1