Ponrajah.A.J.P. Design of Irrigation Headworks For Small Catchments - 2 - Irrigation Department Colombo Colombo,Srilanka. 1984 - 97p. ILL.,Cht.,Fig and Table Nat. Bib. No.: 6585 Subjects--Topical Terms: Engineering Universal Decimal Class. No.: 627.8 / PON