TY  - BOOK
AU  - Havlin,John
TI  - Soil fertility and fertilizers: an introduction to nutrient management 
SN  - 0130278246
U1  - 631.8 SOI 7th ed.
PY  - 2005///
CY  - Upper Saddle River, N.J.
PB  - Pearson Prentice Hall
KW  - Fertilizers
KW  - Soil fertility
KW  - Crops
KW  - Nutrition
N1  - Includes bibliographical references and index
ER  -