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| 005 | 20210219153443.0 | ||
| 008 | 991125n 000 0 eng u | ||
| 035 | _aUPN01000100866 | ||
| 100 | _aERIKSON, Giles P. | ||
| 222 | _aGRADE TEACHER | ||
| 245 | _aSometimes I wonder if they'll ever find it | ||
| 300 | _a110-111 | ||
| 362 | _a1968 Vol. 85, no. 6, feb. | ||
| 653 | 0 | _aDISCIPLINA | |
| 653 | 0 | _aEDUCACION PRIMARIA | |
| 653 | 0 | _aENSEÑANZA | |
| 904 |
_aAC _b038677 |
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| 905 | _aArticulo | ||
| 999 |
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