(1969). Courage!: Personal experiences of challenge and decision in the lives of great men and women. [Kansas City, Mo.]: Hallmark Editions.
シカゴスタイル引用形Courage!: Personal Experiences of Challenge and Decision in the Lives of Great Men and Women. [Kansas City, Mo.]: Hallmark Editions, 1969.
MLA引用形式Courage!: Personal Experiences of Challenge and Decision in the Lives of Great Men and Women. [Kansas City, Mo.]: Hallmark Editions, 1969.
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