TY  - BOOK
AU  - Polunin, Miriam
TI  - Minerals: what they are and why we need them
SN  - 0 7225 0524 8
U1  - 613.285 21st ed.
PY  - 1979///
CY  - Wellingborough
PB  - Thorsons
KW  - Minerals
ER  -