Greenberg, D. (2006). Calvin Coolidge. Times Book.
Chicagoスタイル(17版)引用形式Greenberg, David. Calvin Coolidge. Times Book, 2006.
MLA(9版)引用形式Greenberg, David. Calvin Coolidge. Times Book, 2006.
警告: この引用は必ずしも正確ではありません.
Greenberg, D. (2006). Calvin Coolidge. Times Book.
Chicagoスタイル(17版)引用形式Greenberg, David. Calvin Coolidge. Times Book, 2006.
MLA(9版)引用形式Greenberg, David. Calvin Coolidge. Times Book, 2006.