Micro-computer based GIS 1991 :  report on the UNCHS (Habitat) inventory of Geographic information systems (GIS). 

 - Nairobi :  UNCHS (Habitat),  1991. 
 - iv, 89 p. ;  30 cm. 
<br/><br/> Open access. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Information storage and retrieval systems--Human settlements.<br/>Information storage and retrieval systems.<br/>Human settlements--Data processing.<br/>Human geography--Data processing.