Ray Welland

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Methodical Programming in COBOLRay Welland
Methodical Programming in COBOL
Ray Welland · 1983 · 302 pages
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Fully integrated data environmentsMalcolm Atkinson, Ray Welland
Fully integrated data environments
Malcolm Atkinson, Ray Welland · 1999 · 629 pages
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Decision tables and computer programmingRay Welland
Decision tables and computer programming
Ray Welland · 1981 · 203 pages
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