TY  - BOOK
AU  - Richards,Edgar
TI  - Principles and methods of soil analysis
T2  - U. S. Dept. of agriculture. Division of Chemistry. Bulletin
AV  - S593 .R52
PY  - 1886///
CY  - Washington
PB  - Govt. print. off.
KW  - Soils
KW  - Analysis
N1  - Also available in digital form on the Internet Archive Web site
UR  - http://hdl.loc.gov/loc.gdc/scd0001.00027817233
ER  -