APA (7th ed.) Citation

Proffit, W. R., Field, H. J. W., Larson, B. E., & Sarver, D. M. (2019). Contemporary orthodontics (Sixth Edition.). Elsevier.

Chicago Style (17th ed.) Citation

Proffit, William R., Henry Jr. W. Field, Brent E. Larson, and David M. Sarver. Contemporary Orthodontics. Sixth Edition. Philadelphia, PA: Elsevier, 2019.

MLA (9th ed.) Citation

Proffit, William R., et al. Contemporary Orthodontics. Sixth Edition. Elsevier, 2019.