The dunes of northwestern Indiana
By: by A.F. Knotts ... "Photos taken by H.H. Daugherty, Gary, Ind."
Published: 1917
Place of publication: [Gary?
Language: eng
Number of pages: 20
Subjects: Sand dunes.; Geology -- Indiana.; Michigan, Lake.
Notes: "Prepared for and published in Indiana Geological Report, 1916." [Forty-first annual report of Department of Geology and Natural Resources, Indiana, p. 11-27]