OSSENBRUGGEN, P. J. (1984). System Analysis For Civil Engineers/paul J. Ossebruggen. John Wiley & Sons.
Lua i Stíl Chicago (17ú heag.)OSSENBRUGGEN, Paul J. System Analysis For Civil Engineers/paul J. Ossebruggen. John Wiley & Sons, 1984.
Lua MLA (8ú heag.)OSSENBRUGGEN, Paul J. System Analysis For Civil Engineers/paul J. Ossebruggen. John Wiley & Sons, 1984.
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