APA引文

WHO Scientific Group on Epidemiology, Etiology, and Prevention of Periodontal Diseases. (1978). Epidemiology, etiology, and prevention of periodontal diseases: Report of a WHO Scientific Group. World Health Organization.

Chicago Style (17th ed.) Citation

WHO Scientific Group on Epidemiology, Etiology, and Prevention of Periodontal Diseases. Epidemiology, Etiology, and Prevention of Periodontal Diseases: Report of a WHO Scientific Group. Geneva: World Health Organization, 1978.

MLA引文

WHO Scientific Group on Epidemiology, Etiology, and Prevention of Periodontal Diseases. Epidemiology, Etiology, and Prevention of Periodontal Diseases: Report of a WHO Scientific Group. World Health Organization, 1978.