Sermpong Phapant. (1979). A sociological study of an urban sub-area: Barrio Escopa, Project 4, Quezon City [microform]. Photoduplication Service. University of the Philippines Library.
Chicago-referens (17:e uppl.)Sermpong Phapant. A Sociological Study of an Urban Sub-area: Barrio Escopa, Project 4, Quezon City [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1979.
MLA-referens (9:e uppl.)Sermpong Phapant. A Sociological Study of an Urban Sub-area: Barrio Escopa, Project 4, Quezon City [microform]. Photoduplication Service. University of the Philippines Library, 1979.
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