Library of Congress. Copyright Office. U.S. Copyright Renewals, 1956 July - December.
Chicagoスタイル(17版)引用形式Library of Congress. Copyright Office. U.S. Copyright Renewals, 1956 July - December.
MLA(9版)引用形式Library of Congress. Copyright Office. U.S. Copyright Renewals, 1956 July - December.
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