Parking eight papers presented at the Twenty-eighth Annual Meeting, 1948.

Manylion Llyfryddiaeth
Awdur Corfforaethol: National Research Council (U.S.). Highway Research Board
Fformat: Llyfr
Iaith:English
Cyhoeddwyd: Washington, D.C. Highway Research Board 1949.
Cyfres:Highway Research Board Bulletin 19.
Pynciau: