Kennedy, Robert M. <br/><br/>
The German campaign in Poland (1939) / 
Robert M. Kennedy. 
 - Washington :  Department of the Army,  1956. 
 - 141 p. :  il.; mapy ;  24 cm. 
<br/><br/><label>Subjects--Index Terms: </label>World War, 1939-1945 -- Campaigns -- Poland.