TY  - BOOK
AU  - Bear, Firman E.
TI  - Soils and fertilizers
U1  - 631.45:633.002 J3 
PY  - 1953///
CY  - New York
PB  - John Wiley
KW  - Firman E.Bear
KW  - Soil fertility,Crop yields,Fertilizers and manures,Soil science
ER  -