TY  - BOOK
AU  - Witheford,David K.
ED  - Eno Foundation for Transportation.
TI  - Speed enforcement policies and practice
AV  - HE5620.S6 W56
U1  - 388.31 
PY  - 1970///
CY  - Saugatuck, Conn.
PB  - Eno Foundation for Transportation
KW  - Speed limits
KW  - United States
N1  - Includes bibliographies
ER  -