TY  - BOOK
AU  - Bolt, Gerald N.
AU  - Bruggenwert, M.G.M.
TI  - Soil chemistry
U1  - 631.41  BOL 
PY  - 1982///, repr. 1983
CY  - Amsterdam
PB  - Elsevier Scientific Pulications
KW  - Soil chemistry
N1  - v. A. Basic elements.- v. B. Physico-chemical methods
ER  -