McKillen. Making the World Safe for Workers. University of Illinois Press.
Lua i Stíl Chicago (17ú heag.)McKillen. Making the World Safe for Workers. University of Illinois Press.
Lua MLA (9ú heag.)McKillen. Making the World Safe for Workers. University of Illinois Press.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.