APA (7th ed.) Citation

Wagner, R. (1900). Die Feen: Romantische Oper in drei Akten. Heckel.

Chicago Style (17th ed.) Citation

Wagner, Richard. Die Feen: Romantische Oper in Drei Akten. Mannheim: Heckel, 1900.

MLA (9th ed.) Citation

Wagner, Richard. Die Feen: Romantische Oper in Drei Akten. Heckel, 1900.

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