TY  - BOOK
AU  - RAVINDER Singh
TI  - Distribution of different forms of iron and manganese in arid zone soils of Punjab
U1  - T 631.41 R20D 
PY  - 1993///
CY  - Ludhiana
PB  - PAU
KW  - SOILS -- IRON CONTENT -- ARID REGIONS
KW  - SOIL -- MANGANESE CONTENT -- ARID REGIONS
ER  -