Worcester, D. C. (1976). The Philippine Islands and their people: A record of a personal observation and experience, with a short summary of the more important facts in the history of the archipelago [microform]. University of the Philippines Library.
Chicago-referens (17:e uppl.)Worcester, Dean Conant. The Philippine Islands and Their People: A Record of a Personal Observation and Experience, with a Short Summary of the More Important Facts in the History of the Archipelago [microform]. Quezon City: University of the Philippines Library, 1976.
MLA-referens (9:e uppl.)Worcester, Dean Conant. The Philippine Islands and Their People: A Record of a Personal Observation and Experience, with a Short Summary of the More Important Facts in the History of the Archipelago [microform]. University of the Philippines Library, 1976.