TY  - BOOK
AU  - Lal,R.
AU  - Greenland,D.J.
TI  - Soil physical properties and crop production in the tropics
SN  - 0471997579 :
AV  - S599.9.T76 S65
U1  - 631.4/3�19 
PY  - 1979///
CY  - Chichester [Eng.]
PB  - J. Wiley
KW  - Soils
KW  - Tropics
KW  - Soil physics
KW  - Crops and soils
ER  -