National geographic society, Washington, D. C. (1923). The capital of our country. National geographic society.
Chicagoスタイル(17版)引用形式National geographic society, Washington, D. C. The Capital of Our Country. Washington, D.C: National geographic society, 1923.
MLA(9版)引用形式National geographic society, Washington, D. C. The Capital of Our Country. National geographic society, 1923.
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