TY  - BOOK
AU  - Sayers , M. W.
AU  - Gillespie, T. D.
AU  - Peterson, William D. O.
TI  - Guideline for conducting and calibrating road roughness measurements
SN  - 9780821305904
U1  - 625.8 
PY  - 1986///
KW  - Engineering of Railroads and Roads
ER  -