UNDERSTANDING GIS  the ARC/INFO method - rev. 6 for workstations 
Environmental Systems Research Institute, Inc. 
 - Harlow, Essex, England  Longman Scientific and Technical   c1993. 
 - 1 v. (various pagings)  ill. (some col.)  24 cm. 
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label>0582214327 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ARC/INFO.<br/>Geographic information systems.