APA (7th ed.) Citation

Richmond, B. (2008). An introduction to systems thinking: STELLA software. Isee systems.

Chicago Style (17th ed.) Citation

Richmond, Barry. An Introduction to Systems Thinking: STELLA Software. [Lebanon, N.H.]: Isee systems, 2008.

MLA (9th ed.) Citation

Richmond, Barry. An Introduction to Systems Thinking: STELLA Software. Isee systems, 2008.