TY  - BOOK
AU  - Marel H W Van Der
AU  -  Beutelsphcher H
TI  - Atlas infrared spectroscopy of clay minerals and their admixtures
U1  - H1:(C56:3)f, L6 
PY  - 1976///
CY  - Amsterdam
PB  - Elsevier Publishing        
KW  - Geology
ER  -