APA (7th ed.) Citation

Roos, M. (2009). Spiral galaxy: The Milky Way unraveled. Lightcurve Films.

Chicago Style (17th ed.) Citation

Roos, Maarten. Spiral Galaxy: The Milky Way Unraveled. [Place of publication not identified]: Lightcurve Films, 2009.

MLA (9th ed.) Citation

Roos, Maarten. Spiral Galaxy: The Milky Way Unraveled. Lightcurve Films, 2009.