Resource paper. 

 - Washington, DC :  Association of American Geographers,  1968-1974. 
 - Irregular 
 - No. 1-28. 
<br/><br/> GeoRef 0197-7482  GeoRef 0197-7482 
<br/><br/><label>ISSN: </label>0066-9369 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geography.