Map of the bering river coal field : showing distribution of the various kinds of coal and location - detaljert visning

Map of the bering river coal field : showing distribution of the various kinds of coal and location of the coal sections and coal samples described in Bulletin 335

George Curtis Martin
Bok Engelsk 1915


Utgitt	Washington : U.S. Geological Survey , 1915
Omfang	1 kart : kol.
Opplysninger	Også med tittel: Alaska, Bering River coal field