Ashby Eric <br/><br/>
Reconciling man with the environment 

 - Londn  Oxford University          1978 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>21941 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>Y7:(G:55), L8