APA (7th ed.) Citation

Heaton, J. B., & Turton, N. D. (1989). Longman dictionary of common errors. Longman.

Chicago Style (17th ed.) Citation

Heaton, J. B., and N. D. Turton. Longman Dictionary of Common Errors. Harlow: Longman, 1989.

MLA (9th ed.) Citation

Heaton, J. B., and N. D. Turton. Longman Dictionary of Common Errors. Longman, 1989.