TY  - BOOK
AU  - Ball, V.
TI  - Economic geology
U1  - 559.54 21st ed.
PY  - 1898///
CY  - Calcutta
PB  - Kegan Paul
KW  - Economic geology
KW  - Geology
N1  - Part 1: Corundum / by T.H. Holland; 62-79 includes index
ER  -