TY  - GEN
TI  - Booker tropical soil manual a handbook for soilsurvey and agricultural land evaluation in the tropics and sub
SN  - 0-582-46049-2
U1  - 631.47 / B664B 
PY  - 1984///
CY  - New York
PB  - Longman Group
KW  - Suelos tropicales
ER  -