Grönlund, O. (1912). Om olika former af referendum .. H. Ohlssons boktr..
Lua i Stíl Chicago (17ú heag.)Grönlund, Otto. Om Olika Former Af Referendum .. Lund: H. Ohlssons boktr., 1912.
Lua MLA (8ú heag.)Grönlund, Otto. Om Olika Former Af Referendum .. H. Ohlssons boktr., 1912.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.