Wilson, B. (2001). Soft systems methodology: Conceptual model building and its contribution. John Wiley and Sons.
Citace podle Chicago (17th ed.)Wilson, Brian. Soft Systems Methodology: Conceptual Model Building and Its Contribution. Chichester: John Wiley and Sons, 2001.
Citace podle MLA (9th ed.)Wilson, Brian. Soft Systems Methodology: Conceptual Model Building and Its Contribution. John Wiley and Sons, 2001.
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