National Water Resources Council (Philippines). (1983). Southern Mindanao framework plan: Tagum Libuganon basins. National Water Resource Counsil.
Chicago-referens (17:e uppl.)National Water Resources Council (Philippines). Southern Mindanao Framework Plan: Tagum Libuganon Basins. Quezon City: National Water Resource Counsil, 1983.
MLA-referens (9:e uppl.)National Water Resources Council (Philippines). Southern Mindanao Framework Plan: Tagum Libuganon Basins. National Water Resource Counsil, 1983.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.