The development of an instrument to measure knowledge of traffic safety concepts found to differentiate between violators and non-violators /

Bibliographic Details

Main Author:	Dunn, LeRoy W. (LeRoy Wilotha), 1933-
Format:	Thesis Microform Book
Language:	English
Published:	[Place of publication not identified] : [publisher not identified] ; 1963.
Subjects:	Traffic safety. Traffic violations.