TY  - SER
ED  - American Association of State Highway and Transportation Officials,
TI  - Standard Specifications for Transportation Materials and Methods of Sampling and Testing.1993: Part -1- Specifications AASHTO 1993
SN  - 0360-6902
U1  - 625.7/0218 
CY  - Washington
PB  - American Association of State Highway and Transportation Officials
KW  - Road materials
KW  - Standards
KW  - United States
ER  -