APA (7th ed.) Citation

Dillard, J. L. (1996). A history of American English. Longman.

Chicago Style (17th ed.) Citation

Dillard, J. L. A History of American English. London [etc.]: Longman, 1996.

MLA (9th ed.) Citation

Dillard, J. L. A History of American English. Longman, 1996.

Warning: These citations may not always be 100% accurate.