Brooker, P. Key words in Brecht's theory and practice of theatre: Peter Brooker. The Cambridge companion to Brecht.(2006).
Lua i Stíl Chicago (17ú heag.)Brooker, Peter. "Key Words in Brecht's Theory and Practice of Theatre: Peter Brooker." The Cambridge Companion to Brecht.(2006) .
Lua MLA (8ú heag.)Brooker, Peter. "Key Words in Brecht's Theory and Practice of Theatre: Peter Brooker." The Cambridge Companion to Brecht.(2006), .
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.