TY  - BOOK
AU  - Staff, Soil Survey,
TI  - Keys to soil taxonomy
T2  - Smss technical monograph
SN  - 0929900014
AV  - QH84.8 S73 1990
PY  - 1990///
CY  - Blacksburg, virginia
PB  - Soil management support services
KW  - Taxonomía
ER  -