Yerker, L. (2011). Fun work. Tata Mcgraw Hill.
Lua i Stíl Chicago (17ú heag.)Yerker, Leslie. Fun Work. New Delhi: Tata Mcgraw Hill, 2011.
Lua MLA (9ú heag.)Yerker, Leslie. Fun Work. Tata Mcgraw Hill, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.