Jan L. Mize. Structured programming concepts in an introductory COBOL course. In William G. Poole Jr., Norman E. Gibbs, editors, Proceedings of the 6th SIGCSE Technical Symposium on Computer Science Education, SIGCSE 1976, Williamsburg, VA, USA, 1976. pages 135-142, ACM, 1976. [doi]
Abstract is missing.