TY - RPRT TI - Natural hazards evaluation of existing buildings AU - Culver, Charles G AU - Lew, H S AU - Hart, Gary C AU - Pinkham, Clarkson W PY - 1975 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS BSS 61 DO - 10.6028/NBS.BSS.61 ER -