Economics of approval plans  proceedings. 
Peter Spyers-Duran and Daniel Gore, editors. 
 - Westport, Conn.  Greenwood Press  [1972] 
 - x, 134 p. 
<br/><br/> 920529 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>
<br/><br/><label>LCCN: </label>72000836 //r85 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Acquisitions Libraries--Congresses.<br/>Approval plans in library acquisitions--Congresses.<br/>Libraries, University and college--Congresses.
<br/><br/><label>LC Class. No.: </label>Z689  / .I54 1971 
<br/><br/><label>Dewey Class. No.: </label>025.2