Communications of the ACM (CACM), Volume 13, 1970

Volume 13, Number 1, January 1970

Volume 13, Number 2, February 1970

Volume 13, Number 3, March 1970

Volume 13, Number 4, April 1970

Volume 13, Number 5, May 1970

Volume 13, Number 6, June 1970

Volume 13, Number 7, July 1970

Volume 13, Number 8, August 1970

Volume 13, Number 9, September 1970

Volume 13, Number 10, October 1970

Volume 13, Number 11, November 1970

Volume 13, Number 12, December 1970