TY  - BOOK
AU  - Syers, J K  .
AU  - Rimmer,D L  .
TI  - Soil science and sustainable land management in the tropics / 
SN  - 0-85198-874-1
U1  - 631.4013 
PY  - 1981///
CY  - United Kingdom : 
PB  - CAB International , 
ER  -