000 00389nam a2200121Ia 4500
001 27366
008 170722s9999 xx 000 0 und d
245 _aHEALTH RESEARCH Methodology
_bA guide for training om research methods 1992 /
260 _aNew Delhi :
_bOxford University Press ,
_c1992.
300 _a250 p.
_c27.5cms
490 _aWorld Health Organisation publication
942 _cGEN
999 _c114454
_d114454