TY  - BOOK
AU  - Bolt, G. H. 
AU  - Bruggenwert, M. G. M. 
TI  - Soil chemistry: A. Basic elements 
SN  - 0444414355
U1  - 631.41 22
PY  - 1976///
CY  - New York
PB  - Elsevier
KW  - Soil chemistry
N1  - Includes bibliographical references and index
ER  -