APA (7th ed.) Citation

(2001). Visuell. Quantum Books [u.a.].

Chicago Style (17th ed.) Citation

Visuell. Ostfildern: Quantum Books [u.a.], 2001.

MLA (9th ed.) Citation

Visuell. Quantum Books [u.a.], 2001.

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