Litecky, Charles R.
Structured Cobol: a step by step approach
McGraw-Hill, 1987
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Brown, Gary D.
Advanced ANS cobol: with structured programming
John Wiley & Sons, 1977
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McCraken, Daniel D.
A Simplified guide to structured cobol programming
John Wiley & Sons, 1976
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Noll, Paul
The Structured programming cookbook: a productivity tool for the cobol programmer
Mike Murach & Associates, Inc, 1978
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Schechter, David
Structured cobol report writer: a programmer's productivity tool
Virginia Publishing, 1982
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