A history of Soviet Russia  Volume 12  Foundations of a planned economy 1926 - 1929 : Vol. 3, Part. 1 
 A history of Soviet Russia. Foundations of a planned economy 1926 - 1929 : Vol. 3, Part. 1  Volume 12 

 - Basingstoke :  Palgrave Macmillan,  1975 
 - 313 S.