Penrose, Roger, <br/><br/>
Spinors and Space-Time: Volume 2, Spinor and Twistor Methods in Space-Time Geometry : 

 -  Cambridge University Press,  1984. 
 - 516 pages 
<br/><br/><label>ISBN: </label>9780521347860 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics.
<br/><br/><label>Dewey Class. No.: </label>530.11  / PEN