TY  - BOOK
AU  - Day, Robert W.
TI  - Soil testing manual: procedures, classsification data, and sampling practices 
SN  - 0071363637
U1  - 624.1514 
PY  - 2001///
CY  - New York
PB  - McGraw-Hill Book company
KW  - Soils-Sampling-Handbook
KW  - Soil-Testing-Handbooks
ER  -