APA-referens (7:e uppl.)

Vallisuta, P. (1977). The Catbalogan series in Western Samar Island, Philippines [microform]. Photoduplication Service. University of the Philippines Library.

Chicago-referens (17:e uppl.)

Vallisuta, Pong-Ake. The Catbalogan Series in Western Samar Island, Philippines [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1977.

MLA-referens (9:e uppl.)

Vallisuta, Pong-Ake. The Catbalogan Series in Western Samar Island, Philippines [microform]. Photoduplication Service. University of the Philippines Library, 1977.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.