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| 035 | _aUPN01000105416 | ||
| 100 | 1 | _aGemery, Laura | |
| 222 | _aJOURNAL OF COLLEGE SCIENCE TEACHING | ||
| 245 | _aYellowstone : a natural laboratory | ||
| 300 | _a164-167 | ||
| 362 | 0 | _a1991 Vol. 21, no. 3, | |
| 653 | 0 | _aACTUALIZACION DOCENTE | |
| 653 | 0 | _aECOLOGIA | |
| 653 | 0 | _aEDUCACION AMBIENTAL | |
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| 905 | _aArticulo | ||
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