Nield-Gehrig, J. S., & Willman, D. E. (2008). Foundations of periodontics for the dental hygienist (2nd ed.). Lippincott Williams & Wilkins.
Chicago Style (17th ed.) CitationNield-Gehrig, Jill S., and Donald E. Willman. Foundations of Periodontics for the Dental Hygienist. 2nd ed. Baltimore, MD: Lippincott Williams & Wilkins, 2008.
MLA (9th ed.) CitationNield-Gehrig, Jill S., and Donald E. Willman. Foundations of Periodontics for the Dental Hygienist. 2nd ed. Lippincott Williams & Wilkins, 2008.
Warning: These citations may not always be 100% accurate.