ROWELL, D., & WORMLEY, D. N. (1997). System dynamics: An introduction. Prentice Hall.
Lua i Stíl Chicago (17ú heag.)ROWELL, Derek, agus David N. WORMLEY. System Dynamics: An Introduction. New York: Prentice Hall, 1997.
Lua MLA (9ú heag.)ROWELL, Derek, agus David N. WORMLEY. System Dynamics: An Introduction. Prentice Hall, 1997.
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