Tiger, Lionel,  1937- <br/><br/>
Optimism :  the biology of hope / 
by Lionel Tiger. 
 - New York :  Simon and Schuster,  c1979. 
 - 318 p. ;  23 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0671229346 
<br/><br/><label>LCCN: </label>78031328  
<br/><br/><label>LC Class. No.: </label>GN 365.9 .T53  / .T53 
<br/><br/><label>Dewey Class. No.: </label>301.2