Willhardt, M., Parker, M., & Motion, A. (2000). Who's who in twentieth-century world poetry: Edited by Mark Willhardt and Alan Michael Parker with a foreword by Andrew Motion (1. publ.). Routledge.
Lua i Stíl Chicago (17ú heag.)Willhardt, Mark, Michael Parker, agus Andrew Motion. Who's Who in Twentieth-century World Poetry: Edited by Mark Willhardt and Alan Michael Parker with a Foreword by Andrew Motion. 1. publ. London ; New York: Routledge, 2000.
Lua MLA (8ú heag.)Willhardt, Mark, et al. Who's Who in Twentieth-century World Poetry: Edited by Mark Willhardt and Alan Michael Parker with a Foreword by Andrew Motion. 1. publ. Routledge, 2000.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.