National oral health survey :
National oral health survey : South Africa 1998/89, a report of the first national oral health survey of South Africa /
compiled by P. J. van Wyk.
- Johannesburg : Dept. of Health, 1994.
- 187 p. + annexes.
*
Dental health surveys--statistics.
Mouth diseases--statistics.
Oral health--statistics.
WU 16
*
Dental health surveys--statistics.
Mouth diseases--statistics.
Oral health--statistics.
WU 16