TY  - BOOK
AU  - Ruthven,Alexander Grant
ED  - Michigan.
TI  - A biological survey of the sand dune region on the south shore of Saginaw Bay, Michigan
T2  - Publication 4, Biological series 2
AV  - QH105.M5 A3 no. 2
PY  - 1911///
CY  - Lansing, Mich.
PB  - Wynkoop, Hallenbeck, Crawford co., state printers
KW  - Sand dunes
N1  - 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
ER  -