TY  - RPRT
TI  - Fire endurance of open-web steel-joist floors with concrete slabs and gypsum ceilings 
AU  - Ryan, James V
AU  - Bender, Edward W
PY  - 1954
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS BMS 141
DO  - 10.6028/NBS.BMS.141
ER  -