TY  - BOOK
AU  - Richardson,E.S.
AU  - Rosenbaum,R.E.
AU  - Barger,R.J.
TI  - Present aggregate gradation control practices and alternative test methods
U1  - 388.1 
PY  - 1980///
CY  - Washington, D.C.
PB  - The Commission
KW  - Transportation
KW  - Highways
KW  - transportation services
N1  - Report no. FWHA-RD-79-100
ER  -