Departmental standard.
Great Britain.Roads and Local Transport Directorate.
Great Britain.Highways and Traffic Directorate.
[London : Dept. of Transport],
1978.
Title from cover.
Each issue has a distinctive title.
2/79 issued in two parts.
Some issues include amendments.
At head of title: Department of Transport, Roads and Local Transport Directorate, 1978-; Department of Transport, Highways and Traffic, -
Roads
Bridges