Sheldon, A. E. (1939). Nebraska civil government. University Pub. Co.
Lua i Stíl Chicago (17ú heag.)Sheldon, Addison Erwin. Nebraska Civil Government. Lincoln, New York [etc.]: University Pub. Co, 1939.
Lua MLA (8ú heag.)Sheldon, Addison Erwin. Nebraska Civil Government. University Pub. Co, 1939.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.