TY  - BOOK
AU  - Bear, Firman E.
TI  - Soils and fertilizers
U1  - 631.8 
PY  - 1959///
CY  - New York
PB  - John Wiley and Sons, Inc.
KW  - Agriculture and related technologies
KW  - Technology (Applied sciences)
KW  - Fertilizers
KW  - Soil fertility
ER  -