TY  - BOOK
AU  - Goossens, P. J.
ED  - United Nations
TI  - Graphite deposits of the Precambrian and their mining development
PY  - 1979///
CY  - [Москва]
PB  - Ин-т литосферы АН СССР
KW  - Д452.319
KW  - rubbk
N2  - Библиогр.: с. 25-26
ER  -