Bibliotecas de Economía y Administración ·
Catálogo
UNIVERSIDAD NACIONAL DEL SUR |
|
Scherr, Sara J. | ||||
1. | Soil degradation : a threat to developing-country food security by 2020? / Sara J. Scherr. | 1999 |
I-IFPRI-FA27
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Wood, Stanley. | ||||
2. | Pilot analysis of global ecosystems : agroecosystems / Stanley Wood, Kate Sebastian, Sara J. Scherr. | 2000 |
333.9
W85 |