Krypton Constantine <br/><br/>
Northern sea route and the economy of the Soviet N 

 -  1956 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economic Condition Russia
<br/><br/><label>Dewey Class. No.: </label>X.580r987, J6