Hasselink, Frits (author), van Boven, Gwen (author), Idle, Eddie (author), and World Conservation Union (IUCN), International Union for Conservation and Natural Resources.
Chapter 22 in Denise Hamu, Elisabeth Auchincloss and Wendy Goldstein (eds.), Communicating protected areas. Presented to the Vth IUCN World Parks Congress, Durban, South Africa, September 8-17, 2003.