TY  - RPRT
TI  - Preliminary performance criteria for bituminous membrane roofing 
AU  - Mathey, Robert G
AU  - Cullen, William C
PY  - 1974
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS BSS 55
DO  - 10.6028/NBS.BSS.55
ER  -