TY  - BOOK
AU  - Brown, J.R.
TI  - Soil testing : : sampling, correlation, calibration and interpretation 
SN  - 0891187847
U1  - 631.422 
PY  - 1987///
CY  - Madison
PB  - Soil Science Society of America
KW  - soils-analysis
N1  - includes biographical references
ER  -