TY  - BOOK
AU  - Sorrell,Charles A.
AU  - Sandstrom,George F.
TI  - The rocks & minerals of the world
SN  - 0002196948
U1  - 549 SOR 
PY  - 1977///
CY  - London
PB  - Collins
N1  - Includes index; Bibliography: p. 270-278
ER  -