APA (7th ed.) Citation

Litecky, C. R., & Davis, G. B. (1987). Structured COBOL: A step by approach. McGraw-Hill.

Chicago Style (17th ed.) Citation

Litecky, Charles R., and Gordon Bitter Davis. Structured COBOL: A Step by Approach. New York [u.a.]: McGraw-Hill, 1987.

MLA (9th ed.) Citation

Litecky, Charles R., and Gordon Bitter Davis. Structured COBOL: A Step by Approach. McGraw-Hill, 1987.