1 Sri Lanka. Ministry of Mahaweli Development; Netherlands. Ministry of Foreign Affairs. NEDECO. 1979. Mahaweli Ganga Development Program Implementation Strategy Study - Volume 4: Annex I - Cost estimates and preliminary planning studies; Annex J - Geology (Annex 1, Part A: Multipurpose dams; Annex 1, Part B: Transbasin canals; Annex 1, Part C: Main canals and system head works; Annex 1, Part D: Minor irrigation system and settlement) Unpublished report. v.p.