000 00280nam a2200109Ia 4500
008 220204s9999 xx 000 0 und d
082 _a005
_bBLA
100 _aBlaustein, Elliott
245 0 _aPathways insights into science
260 _aOhio
_bModern Curriculum
_c1977
942 _cBK
999 _c38358
_d38358