XVIIIth World Road Congress, Brussels, 13 - 19 Sept. 1987 / Permanent International Association of Road Congresses ; Question 1: Earthworks, drainage, subgrade : general report
World Road Congress ; 18 ; 1987 ; Bruxelles World Road Congress ; 18 (Bruxelles) : 1987.09.13-19
1987
41 S.
Konferenzband
Englisch