A comparative study of the blood serum protein patterns in the adult of three species of frog rana (R. limnocharis vittigera, R. cancrivora cancrivora, R. Magna mancrocephala) of Luzon, R. P. by means of paper alectrophoresis [microform] - Agdeppa, Julita Magday (Photoduplication Service. University of the Philippines Library, 1977)