Quillen, I. J., & Hanna, L. A. (1948). Education for social competence: Curriculum and instruction in secondary-school social studies. Scott, Foresman.
Chicago-viite (17. p.)Quillen, Isaac James, ja Lavone Agnes Hanna. Education for Social Competence: Curriculum and Instruction in Secondary-school Social Studies. Chicago: Scott, Foresman, 1948.
MLA-viite (9. p.)Quillen, Isaac James, ja Lavone Agnes Hanna. Education for Social Competence: Curriculum and Instruction in Secondary-school Social Studies. Scott, Foresman, 1948.
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