TY  - BOOK
TI  - Soil testing: sampling, correlation, calibration, and interpretation 
SN  - 0891187847 (paperback)
AV  - S593 S65 
PY  - 1987///
CY  - Madison, Wisconsin
PB  - Soil Science Society of America, Inc.
KW  - Agriculture
KW  - Soils
N1  - Includes table
ER  -