Philippines. Mapping and Resource Information Authority. (1991). Region XI: Southern Mindanao (Ed. 1, January, 1991.). National Mapping and Resource Information.
Chicago Style (17th ed.) CitationPhilippines. Mapping and Resource Information Authority. Region XI: Southern Mindanao. Ed. 1, January, 1991. Makati, Metro Manila: National Mapping and Resource Information, 1991.
MLA (9th ed.) CitationPhilippines. Mapping and Resource Information Authority. Region XI: Southern Mindanao. Ed. 1, January, 1991. National Mapping and Resource Information, 1991.
Warning: These citations may not always be 100% accurate.