Geology of Allegan county
By: by C. H. Riggs.
Series: Michigan. Dept. of Conservation. Geological survey division. Progress report,; no. 4
Published: 1938
Place of publication: [Lansing]
Language: eng
Number of pages: 29
Subjects: Geology -- Michigan -- Allegan County.
Notes: cover-title.
At head of title: State of Michigan. Department of conservation ... Geological survey division.
Photoprinted.
Folded maps and plans in pocket.