Niguidula, B. N. (1977). Study of the factors of production of Philippine newspapers and some foreign newspapers [microform]. Photoduplication Service. University of the Philippines Library.
Chicago-Zitierstil (17. Ausg.)Niguidula, Bernardo N. Study of the Factors of Production of Philippine Newspapers and Some Foreign Newspapers [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1977.
MLA-Zitierstil (9. Ausg.)Niguidula, Bernardo N. Study of the Factors of Production of Philippine Newspapers and Some Foreign Newspapers [microform]. Photoduplication Service. University of the Philippines Library, 1977.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.