Lippmann, W. (1998). Opini umum. Obor.
Lua i Stíl Chicago (17ú heag.)Lippmann, Walter. Opini Umum. Obor, 1998.
Lua MLA (8ú heag.)Lippmann, Walter. Opini Umum. Obor, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.