Valencia, N. Q. (1980). Development of sample instructional materials in communication arts (English) grade four of the University of the Philippines Integrated School [microform]. Photoduplication Service. University of the Philippines Library.
Citace podle Chicago (17th ed.)Valencia, Nora Q. Development of Sample Instructional Materials in Communication Arts (English) Grade Four of the University of the Philippines Integrated School [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1980.
Citace podle MLA (9th ed.)Valencia, Nora Q. Development of Sample Instructional Materials in Communication Arts (English) Grade Four of the University of the Philippines Integrated School [microform]. Photoduplication Service. University of the Philippines Library, 1980.