Wolfson, N. (1989). Perspectives sociolingistics and tesol. Newbury House.
Cita Chicago (17th ed.)Wolfson, Nessa. Perspectives Sociolingistics and Tesol. Newbury House, 1989.
Cita MLA (9th ed.)Wolfson, Nessa. Perspectives Sociolingistics and Tesol. Newbury House, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.