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The States of North Africa in the 1970's : Joint hearings before the Subcommittee on Africa and the Subcommittee on the Near East of the Committee on Foreign Affairs, House of Representatives, Ninety-second Congress, second session. July 18, 19, and August 2, 1972
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Russkaja grozovaja tuča
Stepnjak-Kravčinskij, S. M., (1968)
A diplomatic history of Europe since the Congress of Vienna
Albrecht-Carrié, René, (1958)