Panditaratne, B. L. (1977). The Philippine Islands, its geographic setting and foundations [microform]. Photoduplication Service. University of the Philippines Library.
Παραπομπή σε μορφή Chicago (17η εκδ.)Panditaratne, Bernard Leslie. The Philippine Islands, Its Geographic Setting and Foundations [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1977.
Παραπομπή σε μορφή MLA (9th εκδ.)Panditaratne, Bernard Leslie. The Philippine Islands, Its Geographic Setting and Foundations [microform]. Photoduplication Service. University of the Philippines Library, 1977.
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