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020 _a0-19-563265-6
035 _a6736
041 _aENG
082 _a001.891
100 _aWorld Health Organization
245 0 _aHealth research methodology
_ba guide for training in research methods
250 _a1st
260 _aNew Delhi
_bNeil O' Brien Oxford University Press
_c1993
300 _a252
500 _a3404 / 5.11.1996
505 _aWHO, international health, reference, global standards
650 _aWHO
_bGeneral works -- Encyclopedias
942 _cBK
999 _c6734
_d6734