00442nam a2200133 a 450000500170000002000150001708200170003210000060004911000300005524501380008526000330022330000250025649000270028120251203091427.0 a0306411235 a615.905bINV d_ aKolber, Alan R. [et...al] aIn Vitro Toxicity Testing of Environmental Agents Current and Future Possibilities; Part BbDevelopment of Risk Assessment Guidelines aNew YorkbPlenum Pressc1983 axix,545p.c24 cm. HB aNATO Conference Series