APA (7th ed.) Citation

Seymour, R. A., Heasman, P. A., & Macgregor, I. D. M. (1992). Drugs, diseases, and the periodontium. Oxford University Press.

Chicago Style (17th ed.) Citation

Seymour, R. A., Peter A. Heasman, and Ian D. M. Macgregor. Drugs, Diseases, and the Periodontium. Oxford: Oxford University Press, 1992.

MLA (9th ed.) Citation

Seymour, R. A., et al. Drugs, Diseases, and the Periodontium. Oxford University Press, 1992.