O'Connor, J. (1997). The Art of Systems Thinking: Essential Skills for Creativity and Problem Solving. Hammersmith, London: Thorsons.
Chicago-стиль цитированияO'Connor, Joseph. The Art of Systems Thinking: Essential Skills for Creativity and Problem Solving. Hammersmith, London: Thorsons, 1997.
MLA-цитированиеO'Connor, Joseph. The Art of Systems Thinking: Essential Skills for Creativity and Problem Solving. Hammersmith, London: Thorsons, 1997.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.