United States. Bureau of Reclamation. (1966). Cotabato River Basin: Mindanao Island, Philippines. s.n.].
Chicago Style (17. basım) AtıfUnited States. Bureau of Reclamation. Cotabato River Basin: Mindanao Island, Philippines. [S.l: s.n.], 1966.
MLA (9th ed.) AtıfUnited States. Bureau of Reclamation. Cotabato River Basin: Mindanao Island, Philippines. s.n.], 1966.
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