Lua APA (7ú heag.)
ebrary, Inc, Barker, H., & Brown, M. (2011). Howard Barker interviews, 1980-2010: Conversations in catastrophe. Intellect.
Lua i Stíl Chicago (17ú heag.)
ebrary, Inc, Howard Barker, agus Mark Brown. Howard Barker Interviews, 1980-2010: Conversations in Catastrophe. Bristol [England] ; Chicago: Intellect, 2011.
Lua MLA (9ú heag.)
ebrary, Inc, et al. Howard Barker Interviews, 1980-2010: Conversations in Catastrophe. Intellect, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.