Operation Kohoutek: Comet Kohoutek. Papers from a workshop, Huntsville, Ala., June 1974. Gilmer Allen Gary, Ed. National Aeronautics and Space Administration, Washington, D.C., 1975 (available from the Superintendent of Documents, Washington, D.C.).
Comet kohoutek hi-res stock photography and images - Alamy
Kohoutek 1-16 (PN K 1-16) - Deep Sky Observing - Cloudy Nights