APA (7th ed.) Citation

Lindsay, G., Koene, C., Øvreeide, H., & Lang, F. (2008). Ethics for European psychologists. Hogrefe.

Chicago Style (17th ed.) Citation

Lindsay, Geoff, Casper Koene, Haldor Øvreeide, and Fredi Lang. Ethics for European Psychologists. Cambridge, Mass.: Hogrefe, 2008.

MLA (9th ed.) Citation

Lindsay, Geoff, et al. Ethics for European Psychologists. Hogrefe, 2008.