TY  - BOOK
AU  - Thompson, Louis M.
AU  - Troeh, Frederick R.
TI  - Soil and soil fertility
SN  - 0195083288
U1  - 631.4 21st ed.
PY  - 1993///
CY  - New York
PB  - Oxford University Press
KW  - Fertilizer
KW  - Soil chemistry
KW  - Soil classification
KW  - Soil fertility
KW  - Soil science
ER  -