APA (7th ed.) Citation

Lormor, R. A., & McMahan, N. M. (1991). Illustrated Harvard graphics version 2.3. Wordware Pub..

Chicago Style (17th ed.) Citation

Lormor, Rebecca A., and Noel M. McMahan. Illustrated Harvard Graphics Version 2.3. Plano, TX: Wordware Pub., 1991.

MLA (9th ed.) Citation

Lormor, Rebecca A., and Noel M. McMahan. Illustrated Harvard Graphics Version 2.3. Wordware Pub., 1991.