APA (7th ed.) Citation

George, L. C., Friesen, D., & Pooch, E. (1985). The design and implementation of an ecological simulation development environment.

Chicago Style (17th ed.) Citation

George, Leroy Conrad, Donald Friesen, and Edo Pooch. The Design and Implementation of an Ecological Simulation Development Environment. 1985.

MLA (9th ed.) Citation

George, Leroy Conrad, et al. The Design and Implementation of an Ecological Simulation Development Environment. 1985.