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In-depth Study Reports from the World Survey of Current Research and Development on Roads and Road Transport
International Road Federation
其他書名
Conducted in Cooperation with the U.S. Department of Transportation, Federal Highway Administration
出版U.S. Government Printing Office, 1973
URLhttp://books.google.com.hk/books?id=pXvVYGdBLfkC&hl=&source=gbs_api
EBookFULL_PUBLIC_DOMAIN