TY  - BOOK
AU  - Pimentel, David
TI  - World soil erosion and conservation
T2  - Cambridge studies in applied ecology and resource management
U1  - 631.45 
PY  - 1993///
CY  - London
PB  - Cambridge University Press
KW  - ErosiÃ³n
KW  - Suelos
KW  - ConservaciÃ³n
ER  -