Forsythe, George E. "Welcoming remarks" pp137-138

[ACM] (1966) [ACM] CACM 9(03) March 1966 includes proceedings of the ACM Programming Languages and Pragmatics Conference, San Dimas, California, August 1965  

Languages mentioned BALGOL {1958} Burroughs Algorithmic Language MAD {1959} Michigan Algorithm Decoder SUBALGOL {1960} Stanford extensions to BALGOL