APA (7th ed.) Citation

Roxas, H. A. (1941). Marine protozoa of the Philippines. s.n.].

Chicago Style (17th ed.) Citation

Roxas, Hilario Atanacio. Marine Protozoa of the Philippines. [S.l: s.n.], 1941.

MLA (9th ed.) Citation

Roxas, Hilario Atanacio. Marine Protozoa of the Philippines. s.n.], 1941.

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