TY  - BOOK
AU  - Brar, B.S
TI  - Soil Quality, Crop Productivity and Sustainability
U1  - 631.43 B79S 
PY  - 2004///
CY  - Ludhiana
PB  - Department Of Soils,Punjab Agricultural University
KW  - SOIL QUALITY
KW  - CROP PRODUCTIVITY
KW  - SUSTAINABILITY
ER  -