Gensaya, F. G. (1967). Curricular changes in social studies in the Philippines elementary school from 1900 to 1960. s.n.].
Citace podle Chicago (17th ed.)Gensaya, Felipe Gestosani. Curricular Changes in Social Studies in the Philippines Elementary School from 1900 to 1960. [Quezon City: s.n.], 1967.
Citace podle MLA (9th ed.)Gensaya, Felipe Gestosani. Curricular Changes in Social Studies in the Philippines Elementary School from 1900 to 1960. s.n.], 1967.
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