TY  - BOOK
AU  - Lal, R ( Ed.)
AU  - Greenland, D J ( Ed.) 
TI  - Soil physical properties and crop production in the topics 
SN  - 0471997579
PY  - 1979///
CY  - Chichester: 
PB  - John Wiley & Sons, 
KW  - Agriculture
KW  - Soil physics
KW  - Root growth
ER  -