A comparison of ten varieties of traffic signal filter arrow /

Bibliographic Details
Main Author:	Rutley, K. S.
Corporate Author:	Road Research Laboratory
Other Authors:	Christie, A. W.
Format:	Book
Language:	English
Published:	Crowthorne : Road Research Laboratory, 1966.
Series:	RRL report ; LR33.
Subjects:	Traffic signs and signals > Great Britain.

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