ed. by Henry P. Stevenson.Conference on Data Systems Languages(CODASYL). Programming Language Committee (1975 : Los Angeles, Cal.):Symposium on Structured Porgramming in COBOL-Future and Present.ACM,1975.
Conference on Data Systems Languages(CODASYL). Programming Language Committee (1975 : Los Angeles, Cal.):Symposium on Structured Porgramming in COBOL-Future and Present