000 00269nam a2200133Ia 4500
999 _c8695
_d8695
020 _a0273008463
100 _aMarshall W T
245 _aStructures
250 _a2
260 _c1977
_bELBS & PITMAN
_aLondon
300 _axiii+455
700 _aNelson H M
942 _cBK