000 00344nam a2200145Ia 4500
020 _a9780751308327
082 _b666
_a000
100 _a"Hann, Judith"
245 0 _aHow Science Works
260 _bDorling Kindersley Limited
_aLondon
_c1991
300 _a192
944 _cR
999 _c784373
_d784373