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.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWagner, 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.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWagner, 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.
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