Library of Congress classification :  Class Q. Science. 
 Science. Class Q. 

 - 1996 ed. 
 - Washington, D.C. :  The Library ,  1996                                                                                                                                  . 
 - x, 702 p. ;  26 cm. 
<br/><br/> Includes index  Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Classification--Books--Science<br/>Classification--Books--Mathematics<br/>Classification--Books--Physics<br/>Classification--Books--Chemistry<br/>Literature--Bibliography--Biology<br/>Classification, Library of Congress.