prepared by Clement International Corporation and Syracuse Research Corporation under contract no. 205-88-0608 ; prepared for U.S. Department of Health and Human Services, Public Health Service, Agency for Toxic Substances and Disease Registry
prepared by Clement International Corporation under contract no. 205-88-0608 ; prepared for U.S. Department of Health and Human Services, Public Health Service, Agency for Toxic Substances and Disease Registry
prepared by Syracuse Research Corporation ; prepared for U.S. Department of Health and Human Services, Public Health Service, Agency for Toxic Substances and Disease Registry
prepared by Research Triangle Institute ; prepared for U.S. Department of Health and Human Services, Public Health Service, Agency for Toxic Substances and Disease Registry
prepared by Syracuse Research Corporation under contract no. 205-1999-00024 ; prepared for U.S. Department of Health and Human Services, Public Health Service, Agency for Toxic Substances and Disease Registry
prepared by Syracuse Research Corporation ; prepared for U.S. Department of Health and Human Services, Public Health Service, Agency for Toxic Substances and Disease Registry
prepared by Research Triangle Institute under contract no. 205-93-0606 ; prepared for U.S. Department of Health and Human Services, Public Health Service, Agency for Toxic Substances and Disease Registry
prepared by Sciences International, Inc. Under Subcontract to Research Triangle Institute ; prepared for U.S. Department of Health and Human Services, Public Health Service, Agency for Toxic Substances and Disease Registry
prepared by Syracuse Research Corporation; prepared for U.S. Department of Health and Human Services, Public Health Service, Agency for Toxic Substances and Disease Registry
prepared by Syracuse Research Corporation; prepared for U.S. Department of Health and Human Services, Public Health Service, Agency for Toxic Substances and Disease Registry
prepared by Research Triangle Institute under contract no. 205-93-0606 ; prepared for U.S. Department of Health and Human Services, Public Health Service, Agency for Toxic Substances and Disease Registry
prepared by Syracuse Research Corporation ; prepared for U.S. Department of Health and Human Services, Public Health Service, Agency for Toxic Substances and Disease Registry
sponsored by the Division of Analytical Chemistry at the 174th meeting of the American Chemical Society, Chicago, Illinois, August 29-30, 1977 ; Terence H. Risby, editor
prepared by Clement International Corporation; prepared for U.S. Department of Health and Human Services, Public Health Service, Agency for Toxic Substances and Disease Registry
prepared by Research Triangle Institute under contract no. 205-93-0606 ; prepared for U.S. Department of Health and Human Services, Public Health Service, Agency for Toxic Substances and Disease Registry
prepared by Syracuse Research Corporation ; in collaboration with U.S. Environmental Protection Agency ; technical editing, document preparation by Oak Ridge National Laboratory