The caves of Graataadalen Northern Norway

by David St. Pierre an d other members of the expedition
Bok · Engelsk · 1966

Utgitt	Ledbury, Herefordshire : Cave Research group og Great Britain , 1966
Omfang	64 s. : ill., fig.
Emner	Grotter - Beiarn Grotter(geologi) - Beiarn Gråtådalen
Dewey	551.44
ISBN	(h.)