Cita APA (7th ed.)
Vettorel, P. (2015). New frontiers in teaching and learning English. Cambridge Scholars Publishing.
Cita Chicago (17th ed.)
Vettorel, Paola. New Frontiers in Teaching and Learning English. Newcastle upon Tyne, England: Cambridge Scholars Publishing, 2015.
Cita MLA (9th ed.)
Vettorel, Paola. New Frontiers in Teaching and Learning English. Cambridge Scholars Publishing, 2015.
Atenció: Aquestes cites poden no estar 100% correctes.