TY  - RPRT
TI  - The performance of roofing made with asplund felts. 
AU  - Greenfeld, Sidney H
PY  - 1969
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS TN 477
DO  - 10.6028/NBS.TN.477
ER  -