TY  - BOOK
AU  - Sanchez, Pedro A.
TI  - Properties and management of soils in the tropics
PY  - 1976///
CY  - New York
PB  - John Wiley and Sons
KW  - Agriculture -- tropics
KW  - sears
KW  - Plant-soil relationships
KW  - Soil science
KW  - Soils -- Tropics
N1  - Includes bibliographical references
ER  -