APA (7th ed.) Citation

(1963). Map of the Philippines showing national parks. [s.n.].

Chicago Style (17th ed.) Citation

Map of the Philippines Showing National Parks. [Manila]: [s.n.], 1963.

MLA (9th ed.) Citation

Map of the Philippines Showing National Parks. [s.n.], 1963.

Warning: These citations may not always be 100% accurate.