The New Grove Wagner1984
by John Deathridge
"Chapters 4 and 5 first published in The New Grove dictionary of music and musicians, edited by Stanley Sadie, 1980"--T.p. verso."First published in UK in paperback, 1984, by Papermac"--T.p. verso. Includes bibliographical references (p. 194-220) and index.List of works: p. 165-193.
— from OpenLibrary
4 editions at OpenLibrary