Ladygin, Boris Nikolaevich. <br/><br/>
The Socialist community at a new stage / 
B. N. Ladygin, O. K. Rybakov, V. I. Sedov ; translated by H. Campbell Creighton. 
 - Moscow :  Progress Publishers,  c1979. 
 - 155 p.   20 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Universal Decimal Class. No.: </label>335.9