Orr, K. G. (1957). The sources on characteristics of the people of the Philippine Islands. U.S. Dept. of State.
Chicago Style (17th ed.) CitationOrr, Kenneth G. The Sources on Characteristics of the People of the Philippine Islands. [Wash., D.C: U.S. Dept. of State, 1957.
MLA (9th ed.) CitationOrr, Kenneth G. The Sources on Characteristics of the People of the Philippine Islands. U.S. Dept. of State, 1957.
Warning: These citations may not always be 100% accurate.