Coloma, M. A. (1976). Problem solving skills of sophomore students as developed in general science in a selecyted high school [microform]. Photoduplication Service. University of the Philippines Library.
Čikaški stil citiranja (17. izdanje)Coloma, Maria Asuncion. Problem Solving Skills of Sophomore Students as Developed in General Science in a Selecyted High School [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1976.
MLA način citiranja (9. izdanje)Coloma, Maria Asuncion. Problem Solving Skills of Sophomore Students as Developed in General Science in a Selecyted High School [microform]. Photoduplication Service. University of the Philippines Library, 1976.
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