"Penna, C.V. (ed.)" <br/><br/>
National library and information services 

 - London  Butterworths  1977 
 - 231p. 
<br/><br/><label>ISBN: </label>408708182 
<br/><br/><label>Subjects--Topical Terms: </label><br/>National library
<br/><br/><label>Dewey Class. No.: </label>027.5 Nat