Wagner, R. (1960). The ring of the Nibelung / by Richard Wagner ; translated and with a foreword by Stewart Robb ; introduction by Edward Downes ; illustrations by Jim McMullan.
Lua i Stíl Chicago (17ú heag.)Wagner, Richard. The Ring of the Nibelung / by Richard Wagner ; Translated and with a Foreword by Stewart Robb ; Introduction by Edward Downes ; Illustrations by Jim McMullan. New York : E.P. Dutton, 1960.
Lua MLA (9ú heag.)Wagner, Richard. The Ring of the Nibelung / by Richard Wagner ; Translated and with a Foreword by Stewart Robb ; Introduction by Edward Downes ; Illustrations by Jim McMullan. 1960.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.