TY  - BOOK
AU  - Deer, W. A.
AU  - Zussman, J.
TI  - ROCK-FORMING MINERALS
U1  - 549.6 
PY  - 1986///
CY  - Harlow
PB  - Longman Scientific & Technical
KW  - Mineralogy
N1  - Contents : V. 1b. Disilicates And Ring Silicates
ER  -