Kownslar, A. O., & Frizzle, D. B. (1974). Discovering American history. Holt, Rinehart and Winston.
Chicagoスタイル(17版)引用形式Kownslar, Allan O., , Donald B. Frizzle. Discovering American History. New York: Holt, Rinehart and Winston, 1974.
MLA(8版)引用形式Kownslar, Allan O., , Donald B. Frizzle. Discovering American History. Holt, Rinehart and Winston, 1974.
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