African nationalism in the twentieth century Hans Kohn and Wallace Sokolsky. Kohn, Hans, Sokolsky, Wallace, jt . aut. Nationalism Africa. DT30 .K6 320.158 KOA Bibliography: p. 186-188. Princeton, N.J. : Van Nostrand, 1965. 1965. 1965 Text 192 p. : eng Anvil original, 79 Africa Politics and government Africa.