00351nam a2200109Ia 4500008004100000020001500041082001500056100003000071245005200101260006800153300002000221250602s9999    xx            000 0 und d  a9241571411  a363.738QUA  aWorld Health Organization 0aQuality management for chemical safety testing.  aGenevabInternational Programme on Chemical Safety (IPCS)c1992  a112 p. ; 21 cm.