000 00353nam a2200145Ia 4500
020 _a9780030543494
082 _bT 1029
_a500.030
100 _a"DOBSON , KEN"
245 0 _aHolt Science Spectrum
260 _bHartcourt Education Company
_aUSA
_c2001
300 _a728
944 _cR
999 _c726968
_d726968