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| 100 | _aSELMA WASSERMANN | ||
| 245 | 0 | _aTEACHING ELEMENTARY SCIENCE | |
| 260 |
_aNEW YORK _bTEACHERS COLLEGE _c1996 |
||
| 300 | _a321 | ||
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| 650 | _aTEACHING ELEMENTARY SCIENCE | ||
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