Howard, A. W. (1968). Teaching in middle schools. Scranton, Pennsylvania: International Textbook Company.
シカゴスタイル引用形Howard, Alvin W. Teaching in Middle Schools. Scranton, Pennsylvania: International Textbook Company, 1968.
MLA引用形式Howard, Alvin W. Teaching in Middle Schools. Scranton, Pennsylvania: International Textbook Company, 1968.
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