Gumma, A. (1976). Le dondiin et les Philippines. Letters a' M. le President de la Societe' Geographique de Paris [microform]. Photoduplication Service. University of the Philippines Library.
Chicago Style (17th ed.) CitationGumma, Alfred. Le Dondiin Et Les Philippines. Letters a' M. Le President De La Societe' Geographique De Paris [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1976.
MLA citiranjeGumma, Alfred. Le Dondiin Et Les Philippines. Letters a' M. Le President De La Societe' Geographique De Paris [microform]. Photoduplication Service. University of the Philippines Library, 1976.
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