APA (7th ed.) Citation

Shelly, G. B., & Cashman, T. J. (1977). Introduction to computer programming structured COBOL. Anaheim Pub.

Chicago Style (17th ed.) Citation

Shelly, Gary B., and Thomas J. Cashman. Introduction to Computer Programming Structured COBOL. Fullerton, Calif: Anaheim Pub, 1977.

MLA (9th ed.) Citation

Shelly, Gary B., and Thomas J. Cashman. Introduction to Computer Programming Structured COBOL. Anaheim Pub, 1977.