IBM System/360 COBOL Prog Fundamentals Text Prog Instruction Course - 1966!

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IBM System/36 COBOL Summary Manual VTG 1986 Fourth Edition

IBM Application Systems 400 Languages COBOL/400 Reference Summary

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IBM SYSTEMS REFERENCE LIBRARY Orig 360 Basic Prog Supp Specs USER’S GUIDE- 1966

Nevada COBOL Application Packages Book 1 Ellis Computing Software Technology

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