TY  - BOOK
AU  - Ahn, P M
TI  - Tropical soils and fertiliser use
U1  - 631.445.7:631.8 
PY  - 1993///
CY  - England
PB  - Longman Scientific and Technical
KW  - Plantationcrops fertiliser
KW  - Rubber ertiliser
KW  - Rubber siols
KW  - Soil classification
KW  - Soil fertility
KW  - Soil management
KW  - Trace elements
ER  -