Ray Welland

• Decision tables and computer programming
• Fully integrated data environments
• Methodical Programming in COBOL
• Pocket Guide to Cobol (Pitman Programming Pocket Guides)
• Software engineering for electronic systems designers
• COBOL
• Computer Handbook
• Methodical programming in COBOL-85
• Pocket guide to COBOL
• Structured programming
• Welland Decision Tables and Computer Programming