Curtis, David. <br/><br/>
Learn while you sleep  the theory and practice of sleep-learning. 

 - New York  Libra Publishers  [1960] 
 - 126 p.  24 cm. 
<br/><br/><label>LCCN: </label>60015692 /L 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mental suggestion<br/>Therapeutics, Suggestive.<br/>Subconsciousness.
<br/><br/><label>LC Class. No.: </label>BF1156.S8  / C8 
<br/><br/><label>Dewey Class. No.: </label>154.4