APA (7th ed.) Citation

(1999). Thorsten Knebel. [o.V.].

Chicago Style (17th ed.) Citation

Thorsten Knebel. [o.O.]: [o.V.], 1999.

MLA (8th ed.) Citation

Thorsten Knebel. [o.V.], 1999.

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