Kaufmann, William J. III.
Black holes and warped spacetime: from star birth to star seath : to the final cosmic reality where fact and fantasy merge /
William J. Kaufmann, III 
. - Toronto : New York : London : Bantam Books,  1979 
. - 224 p.  ill., schem.  17 cm. 
<br/><label>  ISBN: </label>0-553-20539-0