Wells, J. C. (2000). Longman pronunciation dictionary. Pearson Education.
Cita Chicago (17th ed.)Wells, J. C. Longman Pronunciation Dictionary. Essex: Pearson Education, 2000.
Cita MLA (9th ed.)Wells, J. C. Longman Pronunciation Dictionary. Pearson Education, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.