Lopez, C. (1967). Origins of the Philippine languages. s.n.
Chicago Style (17th ed.) CitationLopez, Cecilio. Origins of the Philippine Languages. [Manila: s.n, 1967.
MLA (9th ed.) CitationLopez, Cecilio. Origins of the Philippine Languages. s.n, 1967.
Warning: These citations may not always be 100% accurate.