Donella Meadows, _Thinking in Systems_. John Gall's _Systemantics_ is a classic, but it's a bit cranky. Related: John Boardman, _Systems Thinking_. Gerald W

Donella Meadows, _Thinking in Systems_. John Gall's _Systemantics_ is a classic, but it's a bit cranky. Related: John Boardman, _Systems Thinking_. Gerald Weinberg, _An Introduction to General Systems Thinking_ John Sterman, _Business Dynamics_.