TY  - RPRT
TI  - Laboratory-field comparison of built-up roofing membranes 
AU  - Boone, Thomas H
AU  - Cullen, William C
PY  - 1968
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS RPT 9844
DO  - 10.6028/NBS.RPT.9844
ER  -