APA (7th ed.) Citation

Hellwig, B., & Knebel, G. (2008). Gabriele Knebel.

Chicago Style (17th ed.) Citation

Hellwig, Burkhardt, and Gabriele Knebel. Gabriele Knebel. [S.l.], 2008.

MLA (9th ed.) Citation

Hellwig, Burkhardt, and Gabriele Knebel. Gabriele Knebel. 2008.

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