TY  - RPRT
TI  - Fire endurance tests of steel sandwich panel exterior wall and roofceiling constructions 
AU  - Son, B C
PY  - 1972
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS IR 73-135
DO  - 10.6028/NBS.IR.73-135
ER  -