TY  - GEN
AU  - Torbic, D. J.
TI  - NCHRP Report 641 Guidance for the Design and Application of Schoulder and Centerline Rumble Strips
SN  - 9780309117999
SN  - 00775614
U1  - 363.125 TOR 
PY  - 2009///
CY  - Washington
PB  - Transportation Research Board
ER  -