TY  - RPRT
TI  - Outdoor performance of plastics: VIII. first update of weathering data
AU  - Rossiter, Walter J, Jr
PY  - 1971
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS RPT 10479
DO  - 10.6028/NBS.RPT.10479
ER  -