APA (7th ed.) Citation

(2000). Wagner and his operas. Macmillan [u.a.].

Chicago Style (17th ed.) Citation

Wagner and His Operas. London [u.a.]: Macmillan [u.a.], 2000.

MLA (9th ed.) Citation

Wagner and His Operas. Macmillan [u.a.], 2000.

Warning: These citations may not always be 100% accurate.