APA (7th ed.) Citation

Anderson, V., & Johnson, L. (1997). Systems thinking basics: From concepts to causal loops. Pegasus Communications.

Chicago Style (17th ed.) Citation

Anderson, Virginia, and Lauren Johnson. Systems Thinking Basics: From Concepts to Causal Loops. Waltham: Pegasus Communications, 1997.

MLA (9th ed.) Citation

Anderson, Virginia, and Lauren Johnson. Systems Thinking Basics: From Concepts to Causal Loops. Pegasus Communications, 1997.