Armentia, A. Y. (1975). The land authority aerial photogrammetry project as a means of accelerating land reform program of the government [microform]. Photoduplication Service, University of the Philippines Library.
Chicago-referens (17:e uppl.)Armentia, Abelardo Y. The Land Authority Aerial Photogrammetry Project as a Means of Accelerating Land Reform Program of the Government [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1975.
MLA-referens (9:e uppl.)Armentia, Abelardo Y. The Land Authority Aerial Photogrammetry Project as a Means of Accelerating Land Reform Program of the Government [microform]. Photoduplication Service, University of the Philippines Library, 1975.
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