000 00354nam a2200157Ia 4500
020 _a0335195407
040 _cPK-LaCSN
082 _bT-83
_a370.71
100 _a"Johnston, Jane"
245 0 _aEarly Explorations In Science
260 _c1996
300 _a168
942 _2ddc
_cTR
999 _c660312
_d660312