TY  - BOOK
AU  - Morgan, P. P. C.
TI  - Soil conservation: : problems and prospects
T2  - Wiley - Interscience publication
U1  - 631.45 
PY  - 1981///
CY  - Chichester, England
PB  - Wiley
KW  - Suelos
KW  - Conservación
ER  -