Tohutoro APA (7th ed.)

Labov, W. (1994). Principles of linguistic change. Blackwell.

Tohutoru Kātū Chicago (17th ed.)

Labov, William. Principles of Linguistic Change. Oxford: Blackwell, 1994.

Tohutoro MLA (9th ed.)

Labov, William. Principles of Linguistic Change. Blackwell, 1994.