Coates, D R Ed <br/><br/>
Thresholds in geogrphology 

 - LONDON  GEORGE ALLEN & UNVIN LTD.  1980 
 - XII, 497p p. 
<br/><br/><label>ISBN: </label>0 04 551033 4 
<br/><br/><label>Subjects--Index Terms: </label>GEOGRAPHY