000 00370nam a2200121Ia 4500
008 160509s9999 xx 000 0 und d
100 _aWorld Health Organization
245 _aOral Health Surveys: Basic methodsWorld Health Organization
250 _a4th Ed.
260 _bWorld Health Organization
_c1997
300 _a66p.
650 _aOral Health Surveys: Basic methods
999 _c10692
_d10692