Ouspensky, P.D. <br/><br/>
Tertium organum :  the third canon of the thought a key to the engimans of the world / 
[By] P.D. Ouspensky 
 - London :  Routledge and Kegan Paul,  1949 
 - xv, 306 p. ;  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fourth dimension<br/>Consciousness<br/>Philosophy