A. Ross, D., G. Smith, P., & H. Morrow, R. (2015). Chapter Foreword to the third edition. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)A. Ross, David, Peter G. Smith, agus Richard H. Morrow. Chapter Foreword to the Third Edition. Oxford University Press, 2015.
Lua MLA (9ú heag.)A. Ross, David, et al. Chapter Foreword to the Third Edition. Oxford University Press, 2015.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.