SCHOON, J. Geometric Design Projects For Higways: An introduction. American Society of Civil Engineers.
Lua i Stíl Chicago (17ú heag.)SCHOON, J.G. Geometric Design Projects For Higways: An Introduction. American Society of Civil Engineers.
Lua MLA (8ú heag.)SCHOON, J.G. Geometric Design Projects For Higways: An Introduction. American Society of Civil Engineers.
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