| 000 | 00392nam a22001457a 4500 | ||
|---|---|---|---|
| 003 | NIELib | ||
| 005 | 20251016160529.0 | ||
| 008 | 251016b |||||||| |||| 00| 0 eng d | ||
| 082 |
_a375.0083 _bECO |
||
| 245 | _aEcosystems:Science Curriculum Improvement Study | ||
| 260 |
_aCalifornia: _bUniversity Of California, _c1970. |
||
| 300 |
_a99p.; _c29cm |
||
| 650 | 0 | _aCurricula | |
| 942 |
_2ddc _cLM |
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| 999 |
_c162541 _d162541 |
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