TY  - BOOK
AU  - Sanchez,Pedro A.
TI  - Properties and management of soils in the tropics
SN  - 0471752002
AV  - S 599.9 .T76S26 1976
PY  - 1976///
CY  - New York
PB  - Wiley
KW  - Plant-soil relationships
ER  -