U. S. Civil Service Commission. (1941). History of the Federal Civil Service, 1789- to the present. U.S. Gov't. Print. Off.
Chicagoスタイル(17版)引用形式U. S. Civil Service Commission. History of the Federal Civil Service, 1789- to the Present. Washington: U.S. Gov't. Print. Off, 1941.
MLA(9版)引用形式U. S. Civil Service Commission. History of the Federal Civil Service, 1789- to the Present. U.S. Gov't. Print. Off, 1941.
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