APA (7th ed.) Citation

Anker, Litzell, & Lundberg. (2002). World heritage sites in Sweden. The Swedish Institute.

Chicago Style (17th ed.) Citation

Anker, Litzell, and Lundberg. World Heritage Sites in Sweden. Stockholm: The Swedish Institute, 2002.

MLA (8th ed.) Citation

Anker, et al. World Heritage Sites in Sweden. The Swedish Institute, 2002.