Duckworth, M. (1998). Going international English for tourism: Workbook. American: Oxford University press.
Stile di citazione ChicagoDuckworth, Michael. Going International English for Tourism: Workbook. American: Oxford University press, 1998.
Citazione MLADuckworth, Michael. Going International English for Tourism: Workbook. American: Oxford University press, 1998.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.