PAPACOSTAS, C. (2001). Transportation engineering & palanning ed.3. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)PAPACOSTAS, C.S. Transportation Engineering & Palanning Ed.3. Prentice-Hall, 2001.
Lua MLA (8ú heag.)PAPACOSTAS, C.S. Transportation Engineering & Palanning Ed.3. Prentice-Hall, 2001.
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