Manual of library economy : a conspectus of professional librarianship for students and practitioners\ 
edited by R. Northwood Lock. 
 - London:  Clive Bingley,  1977 
 - 447p.;   22 cm. 
<br/><br/> Includes Bibliographical references and Index 
<br/><br/><label>ISBN: </label>0208015388 
<br/><br/><label>Dewey Class. No.: </label>CB  / 020 MAN