Não informado. (2003). Tourism Review. Association Internationale d' Experts Scientifiques in Tourisme.
Chicagoスタイル(17版)引用形式Não informado. Tourism Review. St. Gallen, Suíça: Association Internationale d' Experts Scientifiques in Tourisme, 2003.
MLA(8版)引用形式Não informado. Tourism Review. Association Internationale d' Experts Scientifiques in Tourisme, 2003.
警告: この引用は必ずしも正確ではありません.