Sitasi

APA Format

World Health Organization (WHO) . (). Epidemiology, etiology, and prevention of periodontal diseases, TRS.621. : Geneva WHO 1978

MLA Format

World Health Organization (WHO) . Epidemiology, etiology, and prevention of periodontal diseases, TRS.621. : Geneva WHO 1978,

Australian/Harvard Format

World Health Organization (WHO) . . Epidemiology, etiology, and prevention of periodontal diseases, TRS.621. Geneva WHO 1978,

Warning: These citations may not always be 100% accurate.