TY  - BOOK
AU  - LANDON,J.R.(Ed)
TI  - Booker tropical soil manual: a handbook for soil survey and agricultural land evaluation in the tropics and subtropics
SN  - 0582005574
U1  - 631.49113 
PY  - 1991///
CY  - London
PB  - Longman Scientific & technical.
ER  -