Swarbrooke, J. H. (2002). Business travel and tourism.
シカゴスタイル引用形Swarbrooke, John; Horner. Business Travel and Tourism. Butterworth-Heinemann, Oxford, 2002.
MLA引用形式Swarbrooke, John; Horner. Business Travel and Tourism. 2002.
警告: この引用は必ずしも正確ではありません.