APA (7th ed.) Citation

Wolfram, W. (1991). Dialects and american english. Prentice Hall.

Chicago Style (17th ed.) Citation

Wolfram, Walt. Dialects and American English. Englewood Cliffs: Prentice Hall, 1991.

MLA (9th ed.) Citation

Wolfram, Walt. Dialects and American English. Prentice Hall, 1991.