Smith, S. W. (1994). Labour economics. Routledge.
Lua i Stíl Chicago (17ú heag.)Smith, Stephen W. Labour Economics. London: Routledge, 1994.
Lua MLA (9ú heag.)Smith, Stephen W. Labour Economics. Routledge, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.