Barrios, H. T. (1975). A survey of the teaching of arithmetic in the intermediate grades in the Division of Cabanatuan City [microform]. Photoduplication Service, University of the Philippines Library.
Citace podle Chicago (17th ed.)Barrios, Herminia Tan. A Survey of the Teaching of Arithmetic in the Intermediate Grades in the Division of Cabanatuan City [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1975.
Citace podle MLA (9th ed.)Barrios, Herminia Tan. A Survey of the Teaching of Arithmetic in the Intermediate Grades in the Division of Cabanatuan City [microform]. Photoduplication Service, University of the Philippines Library, 1975.
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