TY  - GEN
AU  - Landon, J R
TI  - Booker tropical soil manual : A handbook for soil survey and agricultural land evaluation in the tropics and subtropics
SN  - 0-582-46049-2
U1  - 631.4713 LAN 
CY  - London, Booker Agriculture International Ltd
KW  - Soil surveys tropics / soil science
ER  -