Bulbeck, C. (2005). Facing the wild: Ecotourism, conservation, and animal encounters. Earthscan.
Lua i Stíl Chicago (17ú heag.)Bulbeck, Chilla. Facing the Wild: Ecotourism, Conservation, and Animal Encounters. London: Earthscan, 2005.
Lua MLA (9ú heag.)Bulbeck, Chilla. Facing the Wild: Ecotourism, Conservation, and Animal Encounters. Earthscan, 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.