Citazione APA

Middleton, V. T., & Clarke, J. (2007). Marketing in travel and tourism. Elsevier.

Stile di citazione Chicago

Middleton, Victor T.C, e Jackie Clarke. Marketing in Travel and Tourism. Amsterdam: Elsevier, 2007.

Citazione MLA

Middleton, Victor T.C, e Jackie Clarke. Marketing in Travel and Tourism. Elsevier, 2007.