TY  - BOOK
AU  - Thompson,Louis M.
AU  - Troeh,Frederick R.
TI  - Soils and soil fertility / 
U1  - 631.4 THO 
PY  - 1973///
CY  - New York : 
PB  - McGraw-Hill, 
KW  - Soil science
KW  - Soil fertility
N1  -  Includes bibliographical references
ER  -