Cohen, William S. The double man / William S. Cohen and Gary Hart. - 1st ed. - New York : W. Morrow, c1985. - 348 p. ; 25 cm. ISBN: 0688041671 LCCN: 85000267 LC Class. No.: PS3553.O434 .C64 1985 / D6 1985 Dewey Class. No.: 813/.54