Dasmann, R. F.  1919 <br/><br/>
Planet in peril :  man and the biosphere today / 
[by] R. F. Dasmann 
 - Middlesex :  Penguin Books,  [n. d.] 
 - 135 p. :  ill. ;  18 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology<br/>Nature--Effect of human beings on<br/>Nature conservation
<br/><br/><label>Dewey Class. No.: </label>301.31