APA (7th ed.) Citation

Voss, F. (1974). Geology and geomorphology of the Sulu Archipelago. [s.n.

Chicago Style (17th ed.) Citation

Voss, Frithjof. Geology and Geomorphology of the Sulu Archipelago. Berlin: [s.n, 1974.

MLA (9th ed.) Citation

Voss, Frithjof. Geology and Geomorphology of the Sulu Archipelago. [s.n, 1974.

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