Abonal, G. G. (1974). The concepts and expectations of the parent-teacher association in Nabua District, Nabua, Camarines Sur, 1969-1970 [microform]. Photoduplication Service, University of the Philippines Library.
Chicago-referens (17:e uppl.)Abonal, Gregoria Gada. The Concepts and Expectations of the Parent-teacher Association in Nabua District, Nabua, Camarines Sur, 1969-1970 [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1974.
MLA-referens (9:e uppl.)Abonal, Gregoria Gada. The Concepts and Expectations of the Parent-teacher Association in Nabua District, Nabua, Camarines Sur, 1969-1970 [microform]. Photoduplication Service, University of the Philippines Library, 1974.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.