
by IsaacAsimov (Author)
                        Format:  Hardcover
                         Pages: 448
                        Edition: First Edition
                        
                        
                        Publisher: Grafton 
 Published: 26 Sep 1985
                        
                        
                        
                        
                        
                        ISBN 10:  0246123672
 ISBN 13: 9780246123671