Abstracts of papers 

 - Falls Church, Virginia :  American Congress on Surveying and Mapping,  1978 
 - 115 p. 
<br/><br/><label>LCCN: </label>25834 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cartografía--Congresos.
<br/><br/><label>Dewey Class. No.: </label>526.8  / I5