(1969). Useful citizens in action: A textbook in character education and citizenship training. Alemar-Phoenix.
Citace podle Chicago (17th ed.)Useful Citizens in Action: A Textbook in Character Education and Citizenship Training. Quezon City: Alemar-Phoenix, 1969.
Citace podle MLA (9th ed.)Useful Citizens in Action: A Textbook in Character Education and Citizenship Training. Alemar-Phoenix, 1969.
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