O'Hara. Inventing the Pinkertons; or, Spies, Sleuths, Mercenaries, and Thugs. Johns Hopkins University Press.
Lua i Stíl Chicago (17ú heag.)O'Hara. Inventing the Pinkertons; or, Spies, Sleuths, Mercenaries, and Thugs. Johns Hopkins University Press.
Lua MLA (8ú heag.)O'Hara. Inventing the Pinkertons; or, Spies, Sleuths, Mercenaries, and Thugs. Johns Hopkins University Press.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.