| 000 | nam a22 7a 4500 | ||
|---|---|---|---|
| 999 |
_c18248 _d18248 |
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| 008 | 161203b xxu||||| |||| 00| 0 eng d | ||
| 050 | _aLB 1585 .S86 1970 | ||
| 100 | _aSund, Robert B. | ||
| 245 |
_aElementary science discovery lessons : _bthe physical sciences/ |
||
| 260 |
_aBoston : _bAllyn and bacon, _c1970. |
||
| 300 |
_aviii, 302p. : _bill. ; |
||
| 500 | _aInclude index. | ||
| 650 | _aScience, physical. | ||
| 942 |
_2lcc _cBOOKS _hLB 1585 .S86 1970 |
||