00461nam a2200181Ia 450000100060000000300090000600500170001500800410003202000180007304000130009108200160010410000250012024500620014526000430020730000110025054600070026165000110026818686PK-LaUMT20221210143748.0140407s9999 xx 000 0 und d a0-09-138411-7 cPK-LaUMT a 624bARM-F aP. T. Armstrong Liob aFundamentals of construction safetycP. T. Armstrong Liob aLondon,UK:bHutchison of London,c1980 a224 p. aEN aSafety