Gellman, I. (2019). Secret Affairs: Franklin Roosevelt, Cordell Hull, and Sumner Welles. Johns Hopkins University Press.
Chicago Style (17th ed.) ZitazioaGellman, Irwin. Secret Affairs: Franklin Roosevelt, Cordell Hull, and Sumner Welles. Johns Hopkins University Press, 2019.
MLA (9th ed.) ZitazioaGellman, Irwin. Secret Affairs: Franklin Roosevelt, Cordell Hull, and Sumner Welles. Johns Hopkins University Press, 2019.
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