000 00318nam a22001337a 4500
999 _c293802
_d293802
003 OSt
082 _a362.29
_bWHO/US
245 _aUse of essential drugs
260 _aGeneva
_bWorld Health Organization
_c1997
300 _a74p.
440 _aWHO technical report series
_v867
546 _aEnglish
942 _2ddc
_cREP