TY  - BOOK
AU  - Avery, B.W.
TI  - Soil survey laboratory methods
T2  - Technical monograph
PY  - 1974///
CY  - Harpenden
PB  - Rothamsted Experimental Station
KW  - Suelos
KW  - Análisis
KW  - Manuales de laboratorio
ER  -