Ouspensky, P.D. <br/><br/>
Tertium organum : a key to the enigmas of the  world 
<label>/ by </label> Ouspensky, P.D. 
<label>;</label> Bessaraboff, N. <label>;</label> Bragdon, C. 
 - 2nd ed. 
 - London  Kegan Paul, Trench Trubner  1937 
 - xv,336p.  23 cm. 
<br/><br/>L 
<br/><br/><label>Dewey Class. No.: </label>190  / O