Pecson, G. T., & Sulit, L. P. (1957). Building good citizenship: A textbook in civics for grade VI. Children's Bookshop.
Chicago-viite (17. p.)Pecson, Geronima Tomelden, ja Loreto Paras Sulit. Building Good Citizenship: A Textbook in Civics for Grade VI. Manila: Children's Bookshop, 1957.
MLA-viite (9. p.)Pecson, Geronima Tomelden, ja Loreto Paras Sulit. Building Good Citizenship: A Textbook in Civics for Grade VI. Children's Bookshop, 1957.
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