Joerg, W L.......... G

Brief history of polar exploration since the
introduction of flying. To accompany a physical
map of the Arctic and a bathymetric map of the
Antarctic.
8:o New York 1930.
-Society,American geographical, Special
publication. No.11.

Joerg, w L......... G
Brief history of polar exploration since the
introduction of flying. To accompany a physical
map of the Arctic and a bathymetric map of the
Antarctic.
8:o New York 1930.
-Society,American geographical, Special
publication. No.11.