000 00294nam a2200109Ia 4500
100 _aW.H.O. Tech Report services no.749
942 _cBK
245 _aPrevention and control of intestinal parasitic infections
260 _aW.H.O., Geneva
_c1987
082 _aR614.552 W.H.O/TRS
300 _a86
999 _c58746
_d58746