Lua APA (7ú heag.)
ebrary, Inc, Stronza, A., & Durham, W. H. (2008). Ecotourism and conservation in the Americas. CABI Pub..
Lua i Stíl Chicago (17ú heag.)
ebrary, Inc, Amanda Stronza, agus William H. Durham. Ecotourism and Conservation in the Americas. Wallingford, Oxfordshire ; Cambridge, MA: CABI Pub., 2008.
Lua MLA (9ú heag.)
ebrary, Inc, et al. Ecotourism and Conservation in the Americas. CABI Pub., 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.