000 00287nam a2200109Ia 4500
100 _aW.H.O. Tech Report services no.747
942 _cBK
245 _aA capability of call substrate for production of biological
260 _aW.H.O., Geneva
_c1987
082 _aR574.87 W.H.O
300 _a29
999 _c59306
_d59306