Study of circulation control systems  public libraries, college and university libraries, special libraries. 

 - Chicago  Library Technology Project of The American Library Association  1961. 
 - vii, 138 p. illus., tables 
 - LTP publications, no. 1 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Libraries--Circulation, loans.<br/>Charging system Libraries