000 00355nam a2200145Ia 4500
020 _a0000000000
082 _b1142
_a500
100 _a"Firth, Rachel"
245 4 _aThe Usborne First Encyclopedia of science
260 _bFEDERAL PUB
_aSingapore
_c1991
300 _a87
944 _cBK
999 _c777829
_d777829