Airways of America : the United Air Lines: a geological and geographical description of the route from New York to Chicago and San Francisco /
Lobeck, A. K.(Armin Kohl),1886-1958.
Port Washington ; London : Kennikat Press,
1970.
Maps on lining papers and fold sheet (2 sides) in pocket
Facsimile.
Originally published, New York: The Geographical Press, Columbia University, 1933
Bibliographyp.197-200. - Includes index
Airways
Physical geography
Geology