Cayao, M. A. (1975). The extent of forest conservation performed by the Bureau of Forestry and its effects on the people [microform]. Photoduplication Service, University of the Philippines Library.
Chicago-referens (17:e uppl.)Cayao, Marcelina A. The Extent of Forest Conservation Performed by the Bureau of Forestry and Its Effects on the People [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1975.
MLA-referens (9:e uppl.)Cayao, Marcelina A. The Extent of Forest Conservation Performed by the Bureau of Forestry and Its Effects on the People [microform]. Photoduplication Service, University of the Philippines Library, 1975.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.