TY  - BOOK
AU  - x, Buol, S.W.
AU  - x
TI  - Soil genesis and classification: x
SN  - x
U1  - 631.4/S683 
PY  - 1997///
CY  - Iowa
PB  - Iowa State University Press
KW  - Soil science
KW  - Soils-classification
N1  - Includes
ER  -