LILLEY,R. (2010). DEALING WITH DIFFICULT PEOPLE. KOGAN PAGE LTD.
Lua i Stíl Chicago (17ú heag.)LILLEY,R. DEALING WITH DIFFICULT PEOPLE. NEW-YORK: KOGAN PAGE LTD, 2010.
Lua MLA (9ú heag.)LILLEY,R. DEALING WITH DIFFICULT PEOPLE. KOGAN PAGE LTD, 2010.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.