TY - RPRT TI - Meetings of WG 3, 10 and 11 of ISOTC 92, March 25-30, 1973, on doors, instrumentation and fire endurance AU - Robertson, A F PY - 1973 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS IR 73-193 DO - 10.6028/NBS.IR.73-193 ER -