XVIIIth World Road Congress, Brussels, 13 - 19 Sept. 1987 / Permanent International Association of Road Congresses, Conference discussion ; 2: Roads in developing regions
World Road Congress ; 18 ; 1987 ; Bruxelles World Road Congress ; 18 (Bruxelles) : 1987.09.13-19
1987
36 S.
Ill.
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Conference Proceedings
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