There has been data ("Directors of Central Intelligence (DCI) as Leaders of the U.S. Intelligence Community, 1946-2005, Central Intelligence Agency (CIA) Report on Dulles, Helms, Colby, Bush, Casey, Webster, Gates, Tenet") available for this ISBN from the data sources that books-by-isbn.com uses, but not on the latest request on Mon Dec 23 22:20:10 2019, so the data displayed here has been removed .