Merdinger, P. (2009). Northstar 1: Listening and Speaking. Pearson Education.
Stile di citazione ChicagoMerdinger, Polly. Northstar 1: Listening and Speaking. Pearson Education, 2009.
Citazione MLAMerdinger, Polly. Northstar 1: Listening and Speaking. Pearson Education, 2009.
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