TY  - BOOK
AU  - Havlin,John
TI  - Soil fertility and fertilizers: an introduction to nutrient management 
SN  - 9780135033739
AV  - S633 .S51  
PY  - 2013///
CY  - Upper Saddle River, N.J.
PB  - Pearson
KW  -  
KW  - Fertilizers
KW  - Soil fertility
KW  - Crops
N1  - Includes bibliographical references and index
ER  -