Library of Congress classification :  class Q :  science   / 
Library of Congress 
 - Washington, D.C. :  Library of Congress, Cataloging Distribution Service :  For sale by the Service,  1996 
 - 701 p. ;  26 cm. 
<br/><br/>Index. 
<br/><br/><label>ISBN: </label>0844409286 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Classification, Library of congress<br/>Classification--Books--Science