OSSENBRUGGEN, P. J. (1984). Systems Analysis For Civil Engineers. John Wiley.
Lua i Stíl Chicago (17ú heag.)OSSENBRUGGEN, Paul J. Systems Analysis For Civil Engineers. John Wiley, 1984.
Lua MLA (8ú heag.)OSSENBRUGGEN, Paul J. Systems Analysis For Civil Engineers. John Wiley, 1984.
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