000 00276nam a2200109Ia 4500
100 _aW.H.O. Tech Report services no.750
942 _cBK
245 _aAlternative systems of oral care delivery
260 _aW.H.O., Geneva
_c1987
082 _a614.17.601 W.H.O/TRS
300 _a58
999 _c68434
_d68434