Hart, D. V., & Machado, K. (1981). Philippine studies: Political science, economics, and linguistics. Northern Illinois University, Center for Southeast Asian Studies.
Chicago-referens (17:e uppl.)Hart, Donn Vorhis, och Kit Machado. Philippine Studies: Political Science, Economics, and Linguistics. [De Kalb]: Northern Illinois University, Center for Southeast Asian Studies, 1981.
MLA-referens (9:e uppl.)Hart, Donn Vorhis, och Kit Machado. Philippine Studies: Political Science, Economics, and Linguistics. Northern Illinois University, Center for Southeast Asian Studies, 1981.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.