Hafstad, M. R. Guide to the mccormick collection of the state historical society of wisconsin. State Historical Society of Wisconsin.
Lua i Stíl Chicago (17ú heag.)Hafstad, Margaret R. Guide to the Mccormick Collection of the State Historical Society of Wisconsin. Madison: State Historical Society of Wisconsin.
Lua MLA (9ú heag.)Hafstad, Margaret R. Guide to the Mccormick Collection of the State Historical Society of Wisconsin. State Historical Society of Wisconsin.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.