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Lua i Stíl Chicago (17ú heag.)Law, Christopher M. Urban Tourism: Attracting Visitors to Large Cities. London: Mansell, 1996.
Lua MLA (9ú heag.)Law, Christopher M. Urban Tourism: Attracting Visitors to Large Cities. Mansell, 1996.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.