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| 005 | 20210219153432.0 | ||
| 008 | 991125n 000 0 eng u | ||
| 035 | _aUPN01000099317 | ||
| 100 | _aJOHNS, Kenneth W. | ||
| 222 | _aGRADE TEACHER | ||
| 245 | _aSeltzer tablets and pop bottles | ||
| 300 | _a117-119 | ||
| 362 | _a1968 85, no. 6 feb. | ||
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| 653 | 0 | _aEDUCACION PRIMARIA | |
| 653 | 0 | _aENSEÑANZA | |
| 653 | 0 | _aEXPERIMENTOS | |
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| 905 | _aArticulo | ||
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