TY  - BOOK
AU  - Avery, B.W.
TI  - Mineralogy of clayey soils in relation to soil classification
T2  - Soil survey. Technical monograph
U1  - 631.44 
PY  - 1977///
CY  - Harpenden
PB  - Rothamsted Experimental Station
KW  - Suelos arcillosos
KW  - Suelos
KW  - Clasificación
ER  -