000 00344nam a2200145Ia 4500
020 _a086318796x
082 _b.499
_a500
100 _a"Challoner, Jack"
245 0 _aMy Science Book Of Numbers.
260 _bTaylor, Barbara
_aLondon
_c1991
300 _a29
944 _cBK
999 _c384753
_d384753