APA (7th ed.) Citation

Shelly, G. B., & Cashman, T. J. (1973). Introduction to computer programming, ANSI COBOL. Anaheim Pub. Co..

Chicago Style (17th ed.) Citation

Shelly, Gary B., and Thomas J. Cashman. Introduction to Computer Programming, ANSI COBOL. Fullerton, Calif.: Anaheim Pub. Co., 1973.

MLA (9th ed.) Citation

Shelly, Gary B., and Thomas J. Cashman. Introduction to Computer Programming, ANSI COBOL. Anaheim Pub. Co., 1973.