APA (7th ed.) Citation

Shelly, G. B., & Cashman, T. J. (1980). Introduction to computers and data processing. Anaheim Pub.

Chicago Style (17th ed.) Citation

Shelly, Gary B., and Thomas J. Cashman. Introduction to Computers and Data Processing. Fullerton, CA: Anaheim Pub, 1980.

MLA (9th ed.) Citation

Shelly, Gary B., and Thomas J. Cashman. Introduction to Computers and Data Processing. Anaheim Pub, 1980.