Library of congress, Washington <br/><br/>
Annual report of the librarian of congress for the fiscal year ending june 30, 1970.   

 - Washington  Library of congress  1971 
 - xv, 156p. 
<br/><br/><label>LCCN: </label>6-6273 
<br/><br/><label>Dewey Class. No.: </label>027.573  / N71