Lua APA (7ú heag.)
ebrary, Inc, World Parks Congress, Bushell, R., & Eagles, P. F. J. (2006). Tourism and protected areas: Benefits beyond boundaries. CABI Pub..
Lua i Stíl Chicago (17ú heag.)
ebrary, Inc, World Parks Congress, Robyn Bushell, agus Paul F. J. Eagles. Tourism and Protected Areas: Benefits Beyond Boundaries. Wallingford ; Cambridge, MA: CABI Pub., 2006.
Lua MLA (9ú heag.)
ebrary, Inc, et al. Tourism and Protected Areas: Benefits Beyond Boundaries. CABI Pub., 2006.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.