(2014). 润滑与密封．2014,v.39,no.10-12.
Lua i Stíl Chicago (17ú heag.)润滑与密封．2014,v.39,no.10-12. 2014.
Lua MLA (8ú heag.)润滑与密封．2014,v.39,no.10-12. 2014.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
Lua APA (7ú heag.)