APA (7th ed.) Citation

Theissen, H. (1997). Am Mikrofon. [s.n.].

Chicago Style (17th ed.) Citation

Theissen, Hermann. Am Mikrofon. [Köln]: [s.n.], 1997.

MLA (9th ed.) Citation

Theissen, Hermann. Am Mikrofon. [s.n.], 1997.

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