APA (7th ed.) Citation

Magnor, G. W., Knudsen, I., & Skofteland, H. (2013). The optimists. CAT&Docs.

Chicago Style (17th ed.) Citation

Magnor, Gunhild Westhagen, Ingunn Knudsen, and Hilde Skofteland. The Optimists. Paris, France: CAT&Docs, 2013.

MLA (9th ed.) Citation

Magnor, Gunhild Westhagen, et al. The Optimists. CAT&Docs, 2013.