Clavio, S. T. A study of the development of the Philippine constitution [microform]. Photoduplication Service.
Chicago-referens (17:e uppl.)Clavio, Sofronio Tapang. A Study of the Development of the Philippine Constitution [microform]. Quezon City: Photoduplication Service.
MLA-referens (9:e uppl.)Clavio, Sofronio Tapang. A Study of the Development of the Philippine Constitution [microform]. Photoduplication Service.
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