TY  - BOOK
AU  - Jha, J.
TI  - Problem Soils and  Principles of their Management / 
U1  - 631.4 
PY  - 1981///
CY  - .- Bhagalpur
PB  - : Shree Sadhana Press
KW  - Technology (Applied Sciences)
KW  - Agriculture and Related Technologies
KW  - Soils
ER  -