Wolfson, N. (1989). Perspectives sociolingistics and tesol. Newbury House.
Chicago-čujuhus (17. p.)Wolfson, Nessa. Perspectives Sociolingistics and Tesol. Newbury House, 1989.
MLA-čujuhus (9. p.)Wolfson, Nessa. Perspectives Sociolingistics and Tesol. Newbury House, 1989.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.