United States. Bureau of Reclamation. (1966). Cotabato River Basin: Mindanao Island, Philippines. s.n.].
Citazione stile Chigago Style (17a edizione)United States. Bureau of Reclamation. Cotabato River Basin: Mindanao Island, Philippines. [S.l: s.n.], 1966.
Citatione MLA (9a ed.)United States. Bureau of Reclamation. Cotabato River Basin: Mindanao Island, Philippines. s.n.], 1966.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.