Proceedinsg 

 -  1971 
<br/><br/><label>Standard No.: </label>90,571 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>GEOGRAPHY
<br/><br/><label>Dewey Class. No.: </label>U67:792p1:N68, L1