Cita APA (7a ed.)

Wolfram, W. (1998). American English: Dialects and variation / Walt Wolfram y Natalie Schilling-Estes. Blackwell publishers.

Cita Chicago Style (17a ed.)

Wolfram, Walt. American English: Dialects and Variation / Walt Wolfram Y Natalie Schilling-Estes. Massachusetts, Estados Unidos: Blackwell publishers, 1998.

Cita MLA (9a ed.)

Wolfram, Walt. American English: Dialects and Variation / Walt Wolfram Y Natalie Schilling-Estes. Blackwell publishers, 1998.