Calica, J. H. (2002). "Für eine neue deutsche Nationaloper": Opera in the discourses of unification and legitimation in the German Democratic Republic. Music and German national identity.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিCalica, Joy Haslam. ""Für Eine Neue Deutsche Nationaloper": Opera in the Discourses of Unification and Legitimation in the German Democratic Republic." Music and German National Identity 2002.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিCalica, Joy Haslam. ""Für Eine Neue Deutsche Nationaloper": Opera in the Discourses of Unification and Legitimation in the German Democratic Republic." Music and German National Identity, 2002.
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