مصادر الصور
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(3-1) Franklin D. Roosevelt Library.
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(3-2) Library of Congress, LC-USF34-004976-E.
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(3-3) Historical Statistics of the United States, series Ba475 (unemployment) and Ca9 (GDP).
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(4-1) Library of Congress, LC-USZ62-118215.
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(5-1) Franklin D. Roosevelt Library.
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(6-1) Library of Congress, LC-USW3-004511-D.
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(6-2) Franklin D. Roosevelt Library.
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(7-1) Library of Congress, LC-USF33-006392-M4.
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(7-2) Library of Congress, LC-USZC2-881.
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(7-3) National Archives and Records Administration 69-N-P-1304.
