Mathies, M. Lorraine  1919- <br/><br/>
Computer-based reference service / 
by M. Lorraine Mathies and Peter G. Watson 
 - Chicago, Ill. :  American Library Association,  1973 
 - 200 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>0838901565 
<br/><br/><label>LCCN: </label>73-009967 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Reference services (Libraries)--Automation