TY  - BOOK
AU  - Thompson, Louis M
AU  - Troeh, Frederick R
TI  - Soils and soil fertility
U1  - 631.4/THO 
PY  - 1975///
CY  - New Delhi
PB  - Tata McGraw-Hill Publishing Company Limited
KW  - Soil fertility
KW  - Soil science
ER  -