Commerce and trade on the north Atlantic, 850 A.D. to 1350 A.D.
Subtitle: including England, Ireland, Greenland, Scotland and Norway ...
By: by O. Tonning ...
Publisher: Burgess Pub. Co.
Published: 1936
Place of publication: Minneapolis, Minn
Language: eng
Number of pages: 91
Subjects: Commerce; History
Notes: Vita.

Mimeoprinted.

"The third or main part is complete, the first two are digests."

Thesis (Ph. D.)--University of Minnesota, 1935.

Bibliography: leaves 88-90.