TY  - RPRT
TI  - Accelerated durability tests of asphalt roof coatings, first draft 
AU  - Greenfield, Sidney H
PY  - 1953
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS RPT 2236
DO  - 10.6028/NBS.RPT.2236
ER  -