Katz, Willam A. <br/><br/>
Introduction to reference work: Besic information sources 

 - 4th Edition 
 - New York  Mc Graw-Hill  1982 
 - 398p. 
<br/><br/><label>ISBN: </label> USD 29.95 
<br/><br/><label>Source: </label> USD 29.95