Weil , Andrew <br/><br/>
The natural mind / 
Andrew Weil 
 - Harmondsworth :  Penguin Books,  1975 
 - 217 p. :  18 cm . 
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label>0140039368 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physical research