TY  - GEN
AU  - Brady , Nyle C.
AU  - Weil , Ray R.
TI  - Elements of the nature and properties of soils
SN  - 9780138002817
U1  - 631.4 
PY  - 2010///
CY  - New York
PB  - Pearson education
KW  - SOIL ORGANIC MATTER
KW  - SOIL CLASSIFICATION
KW  - SOIL SCIENCE
KW  - AGRICULTURE
KW  - SOIL AND WATER CHEMICAL POLLUTION
ER  -