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How American foreign policy is made
Spanier, John W., (1978)
The department of state : a history of its organization, procedure, and personnel
Stuart, Graham H., (1949)
The Diplomatic Reciprocity Act : hearing before the Subcommittee on International Operations of the Committee on Foreign Affairs, House of Representatives, Ninety-sixth Congress, second session, July 22, 1980
(1980)