Usher, M B <br/><br/>
Biological management and conservation: Ecological theory, Application and planning 

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 - Chapman & Hall Ltd., London  1973 
 - 394 
 - .
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<br/><br/><label>ISBN: </label>  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental ecology-- Island ecology-- Desert Ecology
<br/><br/><label>Dewey Class. No.: </label>577.5  USH-B