Monitoring and evaluation of oral health : report of a WHO Expert Committee /
World Health Organization.
- Geneva : World Health Organization, 1989.
- 69 p.
- World Health Organization technical report series, 782 0512-3054 ; WHO technical report series .
- Technical report series (World Health Organization), 782. .
9241207825 (paper)
90023016
Mouth--Care and hygiene.
Oral hygiene.
9241207825 (paper)
90023016
Mouth--Care and hygiene.
Oral hygiene.