Kleitman, Nathaniel,  1895- <br/><br/>
Sleep and wakefulness. 

 - Rev. and enl. ed. 
 - Chicago, Ill :.  University of Chicago Press,  1963. 
 - 552 p. :  ill. ;  25 cm. 
<br/><br/><label>ISBN: </label>0226440710 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sleep.<br/>Physiology.