Nisperos, N. M. (1977). On Vice-President Oscar M. Alfonso's paper "...Role of regional units.". Center for Regional Development Operations, University of the Philippines College Cebu.
Chicago-referens (17:e uppl.)Nisperos, Nestor Martinez. On Vice-President Oscar M. Alfonso's Paper "...Role of Regional Units.". Lahug, Cebu City: Center for Regional Development Operations, University of the Philippines College Cebu, 1977.
MLA-referens (9:e uppl.)Nisperos, Nestor Martinez. On Vice-President Oscar M. Alfonso's Paper "...Role of Regional Units.". Center for Regional Development Operations, University of the Philippines College Cebu, 1977.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.