Pidd, M. (2004). Systems modelling: Theory and practice. John Wiley & Sons.
Lua i Stíl Chicago (17ú heag.)Pidd, Michael. Systems Modelling: Theory and Practice. Chichester, England ; Hoboken, NJ: John Wiley & Sons, 2004.
Lua MLA (9ú heag.)Pidd, Michael. Systems Modelling: Theory and Practice. John Wiley & Sons, 2004.
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