000 00506nam a22001697a 4500
008 230606b |||||||| |||| 00| 0 eng d
020 _a9241541202
040 _aNational Science Library
_cNational Science Library
080 _a616.31
_bL1;L7
245 _aOral health surveys:
_bBasic methods
_c/ World Health Organization
250 _a2nd ed.
260 _aGeneva:
_bWorld Health Organization,
_c1977
300 _a67p.
650 _aDental surveys
653 _aTeeth-Diseases
942 _2udc
_cREP
999 _c39496
_d39496