Cita APA (7th ed.)

Torre, I. d. l. (1977). Geografia de Filipinas [microform]. Photoduplication Service, University of the Philippines Library.

Cita Chicago (17th ed.)

Torre, Isidoro de la. Geografia De Filipinas [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1977.

Cita MLA (9th ed.)

Torre, Isidoro de la. Geografia De Filipinas [microform]. Photoduplication Service, University of the Philippines Library, 1977.