Sleep mechanisms and functions in humans and animals :  an evolutionary perspective / 
edited by Andrew Mayes. 
 - Berkshire, Eng :  Van Nostrand Reinhold,  1983. 
 - 363 p. :  ill. ;  24 cm. 
 - The Comparative psychology of animals and humans. .
<br/><br/><label>ISBN: </label>0442305400 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sleep.