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100 | 1 | _aMonroy Ata, Arcadio | |
245 | 1 | 0 | _aManual de prácticas de educación ambiental / Arcadio Monroy Ata |
260 | _aMéxico: Trillas | ||
300 | _a133 p. | ||
650 | 1 | 4 | _aEducación ambiental - Manuales, etc. |
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