APA (7th ed.) Citation

Groves, D. N., & Poirot, J. L. (1978). Computers and data processing. Sterling Swift Pub. Co..

Chicago Style (17th ed.) Citation

Groves, David N., and James L. Poirot. Computers and Data Processing. Manchaca, Tex.: Sterling Swift Pub. Co., 1978.

MLA (9th ed.) Citation

Groves, David N., and James L. Poirot. Computers and Data Processing. Sterling Swift Pub. Co., 1978.