APA

Worthington H. V., . (2019). Evidence-based periodontal disese prevention and treatment : introduction. : .

Chicago

Worthington Helen V, . 2019. Evidence-based periodontal disese prevention and treatment : introduction. : .

Harvard

Worthington H. V., . (2019). Evidence-based periodontal disese prevention and treatment : introduction. : .

MLA

Worthington Helen V, . Evidence-based periodontal disese prevention and treatment : introduction. : . 2019.