Warren, Jeff,  1971- <br/><br/>
The head trip :  adventures on the wheel of consciousness / 
written and illustrated by Jeff Warren 
 - England :  Oneworld Publications,  2008 
 - 391 p. :  ill. ;  23 cm. 
<br/><br/>Select bibliography : p. [374]-377 
<br/><br/><label>ISBN: </label>1851685618  RM112.00 9781851685615 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Consciousness<br/>Psychology--Popular works<br/>Consciousness--Humor<br/>Dreams<br/>Sleep