Citazione Stile APA (7a Edizione)
Stott, T. At your service: english for the travel and tourist industry (units 1 to 15): Cassette. Oxford University Press.
Citazione stile Chigago Style (17a edizione)
Stott, Trish. At Your Service: English for the Travel and Tourist Industry (units 1 to 15): Cassette. Oxford University Press.
Citatione MLA (9a ed.)
Stott, Trish. At Your Service: English for the Travel and Tourist Industry (units 1 to 15): Cassette. Oxford University Press.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.