Luanna taifid

Lua APA (7ú heag.)
Leverett Frank. (1929). Map of the surficial deposits of the lake superior region. U. S. Geological Survey.
Lua i Stíl Chicago (17ú heag.)
Leverett Frank. Map of the Surficial Deposits of the Lake Superior Region. U. S. Geological Survey, 1929.
Lua MLA (9ú heag.)
Leverett Frank. Map of the Surficial Deposits of the Lake Superior Region. U. S. Geological Survey, 1929.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.