Warnken, Kelly. <br/><br/>
The information brokers  : how to start and operate your own fee-bases service 

 - New York :  Bowker,  1981 
 - 154 p. 
 - Information Management Series  ; 2 .
 - Information Management Series  ; 2 .
<br/><br/><label>LCCN: </label>52959 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Servicios de información.
<br/><br/><label>Dewey Class. No.: </label>025.52  / W3