000 00287nam a2200097Ia 4500
008 120224s9999 xx 000 0 und d
082 _a372.35044
_bSTO
100 _aStone, A. Harris.
245 _aExperience for teaching children science.
260 _bWadsworth.
_aCalifornia.
_c1971
999 _c139532
_d139532