BONIFACE, B. G., & COOPER, C. P. (1987). The geography of travel and tourism. Heinemann Professional Publishing.
Lua i Stíl Chicago (17ú heag.)BONIFACE, Brian G., agus Christopher P. COOPER. The Geography of Travel and Tourism. Oxford: Heinemann Professional Publishing, 1987.
Lua MLA (9ú heag.)BONIFACE, Brian G., agus Christopher P. COOPER. The Geography of Travel and Tourism. Heinemann Professional Publishing, 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.