TY  - BOOK
AU  - Velde,B.
TI  - Origin and mineralogy of clays: clays and the environment
SN  - 3540580123
PY  - 1995///
CY  - Berlin
PB  - Springer-Verlag
KW  - Clay minerals
KW  - Clay
KW  - Environmental aspects
N1  - Includes bibliographical references and index
ER  -