Lodge, H. C. (1976). The retention of the Philippine Islands [microform]. Photoduplication Service, University of the Philippines Library.
Chicago-referens (17:e uppl.)Lodge, Henry Cabot. The Retention of the Philippine Islands [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1976.
MLA-referens (9:e uppl.)Lodge, Henry Cabot. The Retention of the Philippine Islands [microform]. Photoduplication Service, University of the Philippines Library, 1976.
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