Library of congress information bulletin. 

 - Washington, D.C :    Library of Congress,    1983- 
 - v. ;    28 cm. 
 - Weekly 
 - Vol. 42, no. 29 (July 1983)- 
<br/><br/>  Latest issue consulted: Vol. 42, no. 29 (July 1983). 
<br/><br/><label>ISSN: </label>0041-7904 
<br/><br/><label>Dewey Class. No.: </label>027.505303