TY  - BOOK
AU  - Deer, W.A.
AU  - Zussman, J.
ED  - Howie, R.A.
TI  - Rock forming minerals; vol.1B-Disilicates and ring silicates
SN  - 0582465214
U1  - 549.6, 
PY  - 1986///
CY  - New York
PB  - Longman Scientific & Technical
ER  -