APA (7th ed.) Citation

Lee, P., Lone Mouritsen, & Roger Edward Norum. (2006). The rough guide to Scandinavia. Rough guides.

Chicago Style (17th ed.) Citation

Lee, Phil, Lone Mouritsen, and Roger Edward Norum. The Rough Guide to Scandinavia. London: Rough guides, 2006.

MLA (9th ed.) Citation

Lee, Phil, et al. The Rough Guide to Scandinavia. Rough guides, 2006.