National Water Resources Council. (1983). Central Mindanao framework plan: Agus river basins. NWRC.
Dyfyniad Arddull ChicagoNational Water Resources Council. Central Mindanao Framework Plan: Agus River Basins. [Quezon City]: NWRC, 1983.
Dyfyniad MLANational Water Resources Council. Central Mindanao Framework Plan: Agus River Basins. NWRC, 1983.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.