Zloof, Moshe M. and de Jong, S. Peter "The System for Business Automation (SBA): programming language" pp24

[ACM SIGMOD/PODS] (1976) [ACM SIGMOD/PODS] Proceedings of the 1976 SIGMOD/PODS Conference on Data : Abstraction, definition and structure June 02-04, 1976, Washington, D.C.  

Languages mentioned SBA {1977} System for business automation