Hay, John,  1915- <br/><br/>
The undiscovered country / 
John Hay. 
 - 1st ed. 
 - New York :  Norton,  1982. 
 - 192 p. ;  21 cm. 
<br/><br/> Open access. 
<br/><br/><label>ISBN: </label>0393015718 
<br/><br/><label>LCCN: </label>8122276  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Natural history.<br/>Human beings--Influence on nature.