APA (7th ed.) Citation

Walter, A., Miller-Harris, C. G., Crump, C., Krusbaek, P. F., & Jankovic, M. (2013). Helium. M&M Productions.

Chicago Style (17th ed.) Citation

Walter, Anders, Christian Gamst Miller-Harris, Casper Crump, Pelle Falk Krusbaek, and Marijana Jankovic. Helium. [Denmark]: M&M Productions, 2013.

MLA (9th ed.) Citation

Walter, Anders, et al. Helium. M&M Productions, 2013.