TY  - BOOK
AU  - GILL, Willam R
TI  - Soil dynamic in tillage and traction
U1  - RRS-BALLO 624.151 G36S 
PY  - 2013///
CY  - Jodhpur
PB  - Scientific Publisher
KW  - Soil mechnics
KW  - SOIL MECHNICS
ER  -