Young, W. H. (1961). Essentials of american government: The national government (8a. ed.). Appleton-Century-Crofts.
Chicago-referens (17:e uppl.)Young, William H. Essentials of American Government: The National Government. 8a. ed. Nueva York: Appleton-Century-Crofts, 1961.
MLA-referens (9:e uppl.)Young, William H. Essentials of American Government: The National Government. 8a. ed. Appleton-Century-Crofts, 1961.
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