APA (7th ed.) Citation

Rumbaugh, J. O., & Rumbaugh, D. B. (2011). Command reference for Groundwater Vistas: Version 6 (Version 6.). Environmental Simulations, Inc..

Chicago Style (17th ed.) Citation

Rumbaugh, James O., and Douglas B. Rumbaugh. Command Reference for Groundwater Vistas: Version 6. Version 6. Herndon, VA: Environmental Simulations, Inc., 2011.

MLA (9th ed.) Citation

Rumbaugh, James O., and Douglas B. Rumbaugh. Command Reference for Groundwater Vistas: Version 6. Version 6. Environmental Simulations, Inc., 2011.