000 00387nam a2200157Ia 4500
020 _a0746002785
040 _cPK-LaCSN
082 _b1436
_a000
100 _a"HELEN EDOM"
245 0 _aFinding out about how things are built
260 _bUsborne Publishing Ltd
_aLondon
_c1989
300 _a24
942 _2ddc
_cBK
999 _c681621
_d681621