Title: Brief history of polar exploration since the introduction of flying /
Authors: Joerg, W. L. G. 1885-1952.; Tower, Joseph T. 1897-1931; American Geographical Society of New York.; American Geographical Society of New York.
Publisher: American Geographical Society,
Year: 1930
Subjects: Aeronautics Flights; Arctic regions.; Antarctica.; Arctic regions Discovery and exploration.; Antarctica Discovery and exploration.