TY  - GEN
AU  - Havlin, John L.
AU  - Nelson, Werner L.
AU  - Beaton, James D.
AU  - Tisdale, Samuel L.
TI  - Soil fertility and fertilizers: an introduction to nutrient management
SN  - 812033017X
U1  - 631.422 
PY  - 2005///
CY  - New Delhi
PB  - Prentice-Hall
KW  - Soil science
ER  -