New York: John Wiley & Sons Inc 1994. First Edition. xi, 339 pages. 8vo. Black cloth over blue paper boards. Printed dust jacket. Front hinge a bit sprung, otherwise a nice copy. Near Fine / Near Fine. Boards. 
A unique copy from the estate of physicist Harry E. Petschek, who has typed up and inserted a 3 page document (unsigned but from his estate) about the people in the book (including Sagdeev) he met and his observations about them.