Kent Allen ed <br/><br/>
Encyclopedia of library and information sciences 

 - New york  Marcel Dekkar  1989 
 - v44-52;vi,409;vi,420;vi,428;429- 
<br/><br/><label>ISBN: </label>0-8247-2060-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>library and information science-encyclopedia