Information Processing and Management, Volume 9

Volume 9, Number 1, January 1973

Volume 9, Number 2, February 1973

Volume 9, Number 3, March 1973

Volume 9, Number 4, April 1973

Volume 9, Number 5, May 1973

Volume 9, Number 6, June 1973

Volume 9, Number 7, July 1973

Volume 9, Number 8, August 1973

Volume 9, Number 9, September 1973

Volume 9, Number 10, October 1973

Volume 9, Number 11, November 1973

Volume 9, Number 12, December 1973