TY  - BOOK
AU  - Peck, T. R.
AU  - Cope, J. T., Jr.
AU  - Whitney, D. A.
ED  - American Society of Agronomy. Madison, Wis.
TI  - Soil testing, correlating and interpreting the analytical results: : proceedings of a symposium..
T2  - Special publication
U1  - 631.42 
PY  - 1977///
CY  - Madison, Wis.
PB  - American Society of Agronomy
KW  - Muestreo de suelos
KW  - Suelos
KW  - Análisis
ER  -