APA (7th ed.) Citation

Dobrovolsky, M., Katamba, F., & O'Grady, W. (1996). Contemporary linguistics: An introduction. Longman.

Chicago Style (17th ed.) Citation

Dobrovolsky, Michael, Francis Katamba, and William O'Grady. Contemporary Linguistics: An Introduction. London: Longman, 1996.

MLA (8th ed.) Citation

Dobrovolsky, Michael, et al. Contemporary Linguistics: An Introduction. Longman, 1996.