APA (7e ed.) Bronvermelding

Philippines Regional Development Council, Region XII. (1985). Handbook on land and other physical resources: Central Mindanao. Regional Development Council, Region XII.

Chicago (17e ed.) Bronvermelding

Philippines Regional Development Council, Region XII. Handbook on Land and Other Physical Resources: Central Mindanao. Cotabato City: Regional Development Council, Region XII, 1985.

MLA (9e ed.) Bronvermelding

Philippines Regional Development Council, Region XII. Handbook on Land and Other Physical Resources: Central Mindanao. Regional Development Council, Region XII, 1985.