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