Cameron, C., & Rössler, M. (2013). Many voices, one vision: The early years of the World Heritage Convention. Ashgate.

Cameron, Christina, and Mechtild Rössler. Many Voices, One Vision: The Early Years of the World Heritage Convention. Farnham, Surrey: Ashgate, 2013.

Cameron, Christina, and Mechtild Rössler. Many Voices, One Vision: The Early Years of the World Heritage Convention. Ashgate, 2013.