TY  - BOOK
AU  - Velde,B..
TI  - Introduction to clay minerals: chemistry, origins, uses, and environmental significance
SN  - 0412370301
AV  - QE471.3 .V46 1992
PY  - 1992///
CY  - London ; New York
PB  - Chapman & Hall
KW  - Clay--Analysis
KW  - Clay minerals
N1  - Includes bibliographical references and index
ER  -