Hargett, J. L. (1971). List of selected maps of states and territories. National Archives, National Archives and Records Service.
Citace podle Chicago (17th ed.)Hargett, Janet L. List of Selected Maps of States and Territories. Washington: National Archives, National Archives and Records Service, 1971.
Citace podle MLA (8th ed.)Hargett, Janet L. List of Selected Maps of States and Territories. National Archives, National Archives and Records Service, 1971.
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