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.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWillhardt, Mark, Michael Parker, और 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.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWillhardt, 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.
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