000 00301nam a2200121Ia 4500
008 220201s1977 xx 000 0 eng d
041 _aENG
100 _aUNWALLA, B T
245 0 _aCONCRETE SEPTIC TAMPS
260 _aLONDON
_bTHAMES AND HUDSON PUBLISHING COMPANY
_c1977
300 _a12
942 _2ddc
999 _c47929
_d47929