TY  - BOOK
AU  - Bear,Firman E.
TI  - Soils in relation to crop growth
U1  - 631.4 
PY  - 1965///
CY  - N.Y
PB  - Reinhold Pub.Cor.
KW  - Crop growth
KW  - Soil Fertility
KW  - Soil Science
ER  -