Cita APA (7a ed.)
Labov, W. (1994). Principles of linguistic change: Volume 1, Internal factors. Cambridge, MA : Blackwell.
Cita Chicago Style (17a ed.)
Labov, William. Principles of Linguistic Change: Volume 1, Internal Factors. Oxford, Reino Unido: Cambridge, MA : Blackwell, 1994.
Cita MLA (9a ed.)
Labov, William. Principles of Linguistic Change: Volume 1, Internal Factors. Cambridge, MA : Blackwell, 1994.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.