Zitate

APA-Zitierstil (7. Ausg.)
Estados Unidos Geological Survey. (1928). General geologic map and sections of the Keweenawan and associated rocks in the lake superior copper district. U. S. Geological Survey.
Chicago-Zitierstil (17. Ausg.)
Estados Unidos Geological Survey. General Geologic Map and Sections of the Keweenawan and Associated Rocks in the Lake Superior Copper District. U. S. Geological Survey, 1928.
MLA-Zitierstil (9. Ausg.)
Estados Unidos Geological Survey. General Geologic Map and Sections of the Keweenawan and Associated Rocks in the Lake Superior Copper District. U. S. Geological Survey, 1928.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.