TY - RPRT TI - Fire protection materials and structures : prepared for distribution at 46th Annual Meeting of The Society of American Military Engineers May 23, 1966 AU - Ryan, James V PY - 1966 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS report ; 9307 DO - 10.6028/NBS.RPT.9307 ER -