TY  - BOOK
AU  - Chapman, Homer D
TI  - Diagnostic criteria for plants and soils
U1  - 631.411 
PY  - 1966///
CY  - (Riverside)
PB  - University of California. Division of Agricultural Sciences
KW  - Elementos menores
KW  - Suelos
KW  - Análisis
KW  - Elementos minerales
ER  -