APA (7th ed.) Citation

(1970). Population density by province 1970: Mindanao. s.n.].

Chicago Style (17th ed.) Citation

Population Density by Province 1970: Mindanao. [Manila: s.n.], 1970.

MLA (9th ed.) Citation

Population Density by Province 1970: Mindanao. s.n.], 1970.