Steel, R. (1980). Walter Lippmann and the American century: By Ronald Steel. Little, Brown.
Lua i Stíl Chicago (17ú heag.)Steel, Ronald. Walter Lippmann and the American Century: By Ronald Steel. Boston: Little, Brown, 1980.
Lua MLA (8ú heag.)Steel, Ronald. Walter Lippmann and the American Century: By Ronald Steel. Little, Brown, 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.