Paperback; 1997; Oxford University Press; 270pp.; Conditie: Goed; Paperback, sheet music in the text, 8vo.; Engels; ISBN10: 0198164947, ISBN13: 9780198164944
Gebonden, hardcover, inclusief stofomslag; 1972; New York : St. Martin's Press; 280pp.; Partly browned. -- Conditie: Goed; Original gilt lettered cloth, dust jacket, illustrations in b/w, 8vo.; Engels
Spiegelung einer Welt: eine Deutung von R. Wagners Ring
Gebonden, hardcover; ca. 1987; Stockholm : Fischer & Co; 180pp.; Spine book and parts slipcase browned. -- Conditie: Goed; Original square cloth, circa 31.5x31.5cm, (full page) illustrations in colour and b/w, slipcase.; Duits