Results of letter legibility tests for design of signs on Pennsylvania Turnpike; interchange signs; tunnel approach signs.
Signing turnpike
Roads Streets
Roads and Streets ; 83 , n 6
1940
Article (Journal)
English
© Metadata Copyright Elsevier B. V. All rights reserved.
Engineering Index Backfile | 1958
|Engineering Index Backfile | 1969
|Engineering Index Backfile | 1939
Engineering Index Backfile | 1952
|British Library Online Contents | 1993