000 00534nam a2200193Ia 4500
999 _c30024
_d30024
005 20211231122724.0
008 180712s9999 xx 000 0 und d
020 _a9241544937
082 _a617.601
_bWOR
_223
100 _aWORLD Health Organization
245 _aOral health surveys: basic methods /
250 _a4th ed.
260 _aGeneva
_bWorld Health Organization
_c1997
300 _avii, 66 p.
500 _aIncludes appendices & reference.
650 _aOral hygiene
650 0 _ahealth survey
_9120528
942 _cPR