Sto. Tomas, P. A. (1977). Communication levels and socio-economic development in Southern Luzon (Region IV) [microform]. Photoduplication Service, University of the Philippines Library.
Chicago-Zitierstil (17. Ausg.)Sto. Tomas, Patricia A. Communication Levels and Socio-economic Development in Southern Luzon (Region IV) [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1977.
MLA-Zitierstil (9. Ausg.)Sto. Tomas, Patricia A. Communication Levels and Socio-economic Development in Southern Luzon (Region IV) [microform]. Photoduplication Service, University of the Philippines Library, 1977.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.