Mortimer, E.A.  . <br/><br/>
British library research and development report /  
E.A. Mortimer. 
 - NULL :   ill.,figs. ;   NULL .  
<br/><br/>NULL 
<br/><br/><label>ISBN: </label> NULL (Hb) 
<br/><br/><label>Subjects--Index Terms: </label>LIBRARY RESEARCH LIBRARY RESEARCH-BRITISH 
<br/><br/><label>Dewey Class. No.: </label>025  / MOR/B