Labov, W. (1994). Principles of linguistic change. Blackwell.
Chicago-čujuhus (17. p.)Labov, William. Principles of Linguistic Change. Oxford: Blackwell, 1994.
MLA-čujuhus (9. p.)Labov, William. Principles of Linguistic Change. Blackwell, 1994.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.