Dalton, M. (2000). Human Relations. South-Western Publ.
Lua i Stíl Chicago (17ú heag.)Dalton, Marie. Human Relations. South-Western Publ, 2000.
Lua MLA (9ú heag.)Dalton, Marie. Human Relations. South-Western Publ, 2000.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.