Design of sign supports and structures 6 reports.

Design of sign supports and structures 6 reports.

Bibliographic Details
Corporate Author: National Research Council (U.S.). Highway Research Board
Format: Book
Language:English
Published: Washington, D.C. National Academy of Science - National Research Council 1971.
Series:Highway research record no. 346.
Subjects:
Traffic signs and signals > Break-away supports > Congresses.