000 00328nam a2200145Ia 4500
020 _a0716660075
082 _b4095
_a000
100 _a"NA"
245 0 _aScience At Work
260 _bWORLD BOOK INTERNATIONAL
_aLondon
_c1993
300 _a158
944 _cR
999 _c540553
_d540553