TY  - TH
AU  - Lopez Martinez,J.
TI  - Conservacion y productividad de suelos en ladera de la Fraylesca, Chiapas
PY  - 1993///
CY  - Montecillo, Tex. (Mexico)
PB  - C.P., 
KW  - Chiapas
KW  - Deforestation
KW  - Erosion control
KW  - Sloping land
KW  - Soil conservation
KW  - Soil deterioration
KW  - Soil management
KW  - Water erosion
N1  - Thesis (M. Sc.)
ER  -