- CIENCIAS BIOLOGICAS
- ECOLOGIA 16
- ZOOLOGIA 10
- BOTANICA 9
- ZONAS ARIDAS 5
- FITOGEOGRAFIA 4
- FLORA 4
- VEGETACION 4
- BOSQUES 3
- ECOSISTEMAS DE DESIERTOS 3
- PECES 3
- SUELOS 3
- VERTEBRADOS 3
- CLIMA 2
- CONGRESOS 2
- DESIERTOS 2
- HIDROLOGIA 2
- ICTIOLOGIA 2
- INSECTOS 2
- PINOS 2
- TESIS 2
- ZOOGEOGRAFIA 2
- ADAPTACION VEGETAL 1
- AGRICULTURA 1
- AGUA 1
- AGUAS SUBTERRANEAS 1
- ALGAS 1
- ANFIOSPERMAS 1
- ANIMALES EN CAUTIVERIO 1
- ANIMALES SALVAJES 1
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Desert biome : analysis of ecosistems : Description of validation : sites word models.
Published 1972Conference Proceeding Book -
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Ecology of groundwater in the southwestern United Stated /
Published 1965Conference Proceeding Book -
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Bioecology of the arid and semiarid lands of the Southwest /
Published 1961Conference Proceeding Book -
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