Technical papers: 1991 ACSM-ASPRS annual convention 

 - Bethesda  ACSM  1991 
 - 6 vols. : ill. 
<br/><br/><label>ISBN: </label>0944426387 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MAPS<br/>TEXTBOOKS
<br/><br/><label>LC Class. No.: </label>GA 102.4.E4 Ame