Geology of townships 31 and 30, ranges 20 and 19
Subtitle: District of Algoma
By: by L. D. Ayres.
Publisher: Ontario Dept. of Mines
Published: 1969
Place of publication: Toronto
Language: eng
Number of pages: 100
Subjects: Geology -- Ontario -- Lake Superior Provincial Park.
Notes: Bibliography: p. 85-88.
Issued in a case.