Anderson, V., & Johnson, L. (1997). Systems thinking basics: From concepts to causal loops (1st ed., 1st printing.). Pegasus Communications.
Cita Chicago Style (17a ed.)Anderson, Virginia, y Lauren Johnson. Systems Thinking Basics: From Concepts to Causal Loops. 1st ed., 1st printing. Waltham, MA: Pegasus Communications, 1997.
Cita MLA (9a ed.)Anderson, Virginia, y Lauren Johnson. Systems Thinking Basics: From Concepts to Causal Loops. 1st ed., 1st printing. Pegasus Communications, 1997.
Precaución: Estas citas no son 100% exactas.