TY  - BOOK
AU  - Gottardi Glauco
AU  -  Galli Eramanno
TI  - Natural zeolites
T2  - Minerals and rocks; 18
U1  - H1141, M5 
PY  - 1985///
CY  - Berlin
PB  - Springer Verlag        
KW  - Silicate Minerals
N1  - Appendix 317-349p; Bibliography 351-385p
ER  -