00000cam a22000004a 4500 UP-1685523046125310455 Buklod 20230503092606.0 m o j ta 991231s1990 xx r |||| u|eng|| 9241544031 (iLib)UPMNL-00000045348 RA640 W675 1990 World Health Organization. Equipment for vector control. Geneva World Health Organization 1990 x, 310 p. ill. 24 cm. Pesticides Equipment and supplies. Spraying equipment Specifications. Vector control Equipment and supplies. CPH-11579 UPMNL CPH RA640 W675 1990 Book