A history of Soviet Russia  Volume 13  Foundations of a planned economy 1926 - 1929 : Vol. 3, Part. 2 
 A history of Soviet Russia. Foundations of a planned economy 1926 - 1929 : Vol. 3, Part. 2  Volume 13 

 - Basingstoke :  Palgrave Macmillan,  1975 
 - 643 S.