A biological survey of the sand dune region on the south shore of Saginaw Bay, Michigan. - Michigan. Geological Survey; Ruthven, Alexander Grant, 1882- (Lansing, Mich., Wynkoop, Hallenbeck, Crawford co., state printers, 1911)
At head of title: Michigan Geological and biological survey.
Published as part of the Annual report of the Board of geological and biological survey for 1910.
Keywords: Sand dunes