Bramwell, Anna. <br/><br/>
Ecology in the 20th century :  a history / 
Anna Bramwell. 
 - New Haven :  Yale University Press,  1989. 
 - xii, 292 p. ;  24 cm. +  pbk. 
<br/><br/>Bibliography: p. 275-284. - Includes index. 
<br/><br/><label>ISBN: </label>0300043430 0300045212  
<br/><br/><label>LCCN: </label>88007651 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology--History.
<br/><br/><label>Dewey Class. No.: </label>574.509