Classification 
Library of Congress. 
 - 3rd ed.. 
 - Washington  Library of Congress  1951 
 - xi, 200p.; 25cm. 
<br/><br/> Contents:- Class L. Education. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library science Classification.
<br/><br/><label>Dewey Class. No.: </label>25.43  / U04C