ISBN 0714544221 books & textbook
Die Walkure (The Valkyrie): (English National Opera Guide 21) (English National Opera Guides)
Wagner, Richard John, Nicholas Porter, Andrew Skelton, Geoffrey Millington, Barry Gillespie, George
Overture Publishing /2011-02-07 Paperback / 114 Pages
isbn-10: 0714544221 / isbn-13: 9780714544229
