00300nam a2200133Ia 450000500170000008000170001724500430003426000240007730000100010150000080011158300190011994200110013899900170014920260716043047.0 a08.12.02 I61 aSafety in the use of chemicals at work bILOaGenevaCHc1990 a87 p. aIDS c3/7/00kM2LMGR cMmI61 c39566d39566