Osborne John. (2016). Look Back in Anger. Pearson Education Services.
Lua i Stíl Chicago (17ú heag.)Osborne John. Look Back in Anger. Noida: Pearson Education Services, 2016.
Lua MLA (9ú heag.)Osborne John. Look Back in Anger. Pearson Education Services, 2016.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.