000 00305nam a2200121Ia 4500
008 220201s1976 xx 000 0 eng d
041 _aENG
100 _aUNWALLA, B T
245 0 _aCONCRETE STEPS AND STAIRS
260 _aLONDON
_bTHAMES AND HUDSON PUBLISHING COMPANY
_c1976
300 _a32
942 _2ddc
999 _c47943
_d47943