Or the Control and Communication in the Animal and the Machine (2nd ed.). Cambridge: The MIT Press. Wolfram, Stephen. 2002. A New Kind of Science. Wolfram Media. Zadeh, Lofti. 1962. "From Circuit Theory to System Theory." Proceedings of the IRE 50(5):856–65. External links Systems Thinking at Wikiversity Systems theory at Principia Cybernetica Web Introduction to systems thinking - 55 slides Organizations International Society for the System Sciences New England Complex Systems Institute System Dynamics Society Emergence Interdisciplinary subfields of sociology Complex systems theory Systems science