The great challenge : nationalities and the Bolshevik state, 1917-1930 / Helene Carrere d'Encausse ; Transl. by Nancy Festinger ; forew. by Richard Pipes. - New York ; London : Holmes & Meier, [1992]. - 262 p. ; 23 cm.см.. - Bibliogr.: p. 249-252. - ISBN 0-8419-1285-8[MFN: 21816]