Oxenden C. Clive, Seligson P. Paul, Latham-Koenig Ch, & Clanfield L. (2012). New English File. Pre-Intermediate: Teacher's Book. Oxford, Oxford University Press, 2012.
Citazione stile Chigago Style (17a edizione)Oxenden C. Clive, Seligson P. Paul, Latham-Koenig Ch, e Clanfield L. New English File. Pre-Intermediate: Teacher's Book. Oxford, Oxford University Press, 2012, 2012.
Citatione MLA (9a ed.)Oxenden C. Clive, et al. New English File. Pre-Intermediate: Teacher's Book. Oxford, Oxford University Press, 2012, 2012.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.