TY  - BOOK
AU  - Havlin,John
TI  - Soil fertility and fertilizers: an introduction to nutrient management 
SN  - 0136268064
AV  - S633 .S715 1999
U1  - 631.4/22 21
PY  - 1999///
CY  - Upper Saddle River, N.J.
PB  - Prentice Hall
KW  - Fertilizers
KW  - Soil fertility
KW  - Crops
KW  - Nutrition
N1  - Includes bibliographical references and index
ER  -