000 00291nam a2200109Ia 4500
100 _aWorld Health Organization T R S 813
942 _cBK
245 _aWHO Expert Committee on biological standardization
260 _aAuth, Geneva
_c1991
082 _aR615.3/ W H O/ T R S Wor
300 _aV, 79
999 _c64215
_d64215