APA (7th ed.) Citation

Spence, J. W., & Windsor, J. C. (1989). COBOL for today (3rd ed.). West Pub. Co..

Chicago Style (17th ed.) Citation

Spence, J. Wayne, and John C. Windsor. COBOL for Today. 3rd ed. St. Paul: West Pub. Co., 1989.

MLA (9th ed.) Citation

Spence, J. Wayne, and John C. Windsor. COBOL for Today. 3rd ed. West Pub. Co., 1989.