TY  - BOOK
AU  - Troeh, Frederick R
AU  - Thompson, Louis M. (Louis Milton)
TI  - Soils and soil fertility. (5th ed.)
SN  - 0195083288
AV  - S 591 Tro 
PY  - 1993///
CY  - New York
PB  - Oxford University Press
KW  - SOIL FERTILITY--ZAMBIA
KW  - SOILS
KW  - SOIL MANAGEMENT--ZAMBIA
ER  -