Ouspensky, P D <br/><br/>
Tertium Organum: The Third Canon of Thought, a Key to the Enigmas of the World 

 - New York  Vintage Books  1970 
 - xv,  306 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Philosophy
<br/><br/><label>Dewey Class. No.: </label>181.947  / OUS