Subsurface drainage of highways and airports presented at the Thirty-seventh Annual Meeting, January 6-10, 1958.

Manylion Llyfryddiaeth
Awdur Corfforaethol: National Research Council (U.S.). Highway Research Board
Fformat: Llyfr
Iaith:English
Cyhoeddwyd: Washington Highway Research Board 1959.
Cyfres:Publication (National Research Council (U.S.)) 662.
Bulletin (National Research Council (U.S.). Highway Research Board) no. 209.
Pynciau: