TY  - BOOK
AU  - Havlin, J.L./ Beaton, J.D. /Tisdale, S.L./ Nelson, W.L.
TI  - Soil fertility and fertilizers
SN  - 812033017X
AV  - S 559. 5. H3 2005 
PY  - 2005///
CY  - New Delhi
PB  - Prentice Hall
KW  - Soil-- Fertility
KW  - Fertilizers
ER  -