TY  - BOOK
AU  - Spence,Hugh S.
AU  - Cirkel,Fritz
ED  - Canada.
TI  - Mica,: its occurrence, exploitation, and uses
AV  - TN933 .S7
PY  - 1912///
CY  - Ottawa
PB  - Government Printing Bureau
KW  - Mica
N1  - At head of title: Canada. Dept. of Mines. Mines Branch; First edition, published 1905, was by Fritz Cirkel; "Literature consulted": p. 391-398
ER  -