TY  - BOOK
AU  - Jones, J. Benton, Jr.
AU  - Wolf, Benjamin.
TI  - Manual soil testing procedure using modified (Wolf) Morgan extracting reagent
U1  - 631.42 
PY  - 1984///
CY  - Athens, Ga,
PB  - Benton Laboratories
KW  - Suelos
KW  - Análisis
KW  - Elementos minerales
ER  -