Dorst, Joan,  1924- <br/><br/>
Before nature dies / 
by Jean Dorst ; translated from the French by Constance D. Sherman 
 - London :  Collins,  1970 
 - 352 p. :  ill. ; 22 cm. 
<br/><br/>Bibliography : p. 330-338 
<br/><br/><label>ISBN: </label>0002110776 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Conservation of natural resources<br/>Man--influence on nature