Armour, R. (1962). It all started with Columbus. Cox & Wyman Ltd.
Chicagoスタイル(17版)引用形式Armour, Richard. It All Started with Columbus. London: Cox & Wyman Ltd, 1962.
MLA(9版)引用形式Armour, Richard. It All Started with Columbus. Cox & Wyman Ltd, 1962.
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