Fourth United Nations regional cartographic conference for the Ameri cas, New Yor, 23-27 January, 1989. 

 - New York :    United Nations.,    1989. 
 - 60 p. ;    28 cm. 
<br/><br/>  E/CONF. 81/3   Vol. 1. Report of the conference. 
<br/><br/><label>ISBN: </label>9211004136 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Cartography   Congresses.