Worthington, E. Barton  1905- <br/><br/>
The ecological century :  a personal appraisal / 
E. Barton Worthington 
 - Oxford :  Clarendon Press,  1983 
 - 206 p. :  ill. ; 24 cm. 
<br/><br/><label>ISBN: </label>0198545568 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology--History