TY  - RPRT
TI  - Considerations in establishing performance criteria for structural firefighters' helmets 
AU  - Calvano, Nicholas J
PY  - 1977
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS IR 77-1251
DO  - 10.6028/NBS.IR.77-1251
ER  -