TY  - BOOK
AU  - W.A.Deer
AU  - R.AS.Howie, J.Zussman
TI  - An Introduction to the rock- forming minerls
SN  - 582407168
U1  - 549.114 23
PY  - 1983///
CY  - uk
PB  - ELBS, 
KW  - Silicates
ER  -