BRITANNICA LEARNING KNOW FOR SURE GENERAL KNOWLEDGE- 5 (2nd.). ENCYCLOPEDIA BRITANNICA.
Chicagoスタイル(17版)引用形式BRITANNICA LEARNING KNOW FOR SURE GENERAL KNOWLEDGE- 5. 2nd. NEW DELHI: ENCYCLOPEDIA BRITANNICA.
MLA(9版)引用形式BRITANNICA LEARNING KNOW FOR SURE GENERAL KNOWLEDGE- 5. 2nd. ENCYCLOPEDIA BRITANNICA.
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