XV congress // Permanent International Association of Road Congresses : Mexico City, 1975: Report - Technical Committee on Road Tunnels, Permanent International Association of Road Congresses
World congress. Permanent International Association of Road Congresses ; 15
;
1975
;
Mexico City
World congress. Permanent International Association of Road Congresses ; 15 (Mexico City) : 1975.
World Road Congress ; 15
;
1975
;
Mexico City, Mexico
World Road Congress ; 15 (Mexico City, Mexico) : 1975.
1975
84 S.
graph. Darst.
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Permanent International Association of Road Congresses -- Proc
Engineering Index Backfile | 1935