TY  - BOOK
AU  - Sopher, C.D.,
TI  - Soils and Soil Management
SN  - 0835970310
U1  - 631 
PY  - 1982///
CY  - Reston
PB  - Reston Publishing Co.
KW  - Soil Management
KW  - Soil Science
KW  - Techniques, equipment & materials
ER  -