TY  - RPRT
TI  - Facilities available at the National Bureau of Standards for structural determination of asphalts 
AU  - Ishihara, Shigeru
PY  - 1957
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS RPT 5459
DO  - 10.6028/NBS.RPT.5459
ER  -