Romero, A. T., & Torres, R. (2001). Switzerland. International Labour Office.
Lua i Stíl Chicago (17ú heag.)Romero, Ana Teresa, agus Raymond Torres. Switzerland. Geneva: International Labour Office, 2001.
Lua MLA (9ú heag.)Romero, Ana Teresa, agus Raymond Torres. Switzerland. International Labour Office, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.