Twister geometry and field theory   
by R. S. Ward and Raymond O. Wells. 
 - Cambridge  CUP  1990 
 - 520p 
 - Cambridge monographs on mathematical physics .
<br/><br/><label>ISBN: </label>0521268907 
<br/><br/><label>Dewey Class. No.: </label>530.15635  / N90