000 00327nam a2200145Ia 4500
020 _a9780861635269
082 _b89
_a000
100 _a"NA"
245 4 _aThe way things work
260 _bDorling kindersley
_aLondon
_c1996
300 _a191
944 _cR
999 _c623733
_d623733