TY  - BOOK
AU  - Greenland,D.J.
TI  - Characterization of Soils in relation to their classification and management for crop production : examples from some areas of the humid tropics
SN  - 019854538x
U1  - 631.42 
PY  - 1981///
CY  - New York
PB  - Clarendon Press
KW  - Soil fertility
KW  - Agriculture
ER  -