Title from title screen (viewed on Dec. 18, 2012).
"August 2005."
Chemical manager(s)/author(s): Sam Keith ... [et al.]--P. ix.
"A toxicological profile for tungsten , draft for public comment was released in September 2003. This edition supersedes any previously released draft or final profile"--P. iii.
"This toxicological profile is prepared in accordance with guidelines developed by the Agency for Toxic Substances and Disease Registry (ATSDR) and the Environmental Protection Agency (EPA). The original guidelines were published in the Federal Register on April 17, 1987"--P. v.
Bibliography
Includes bibliographical references (p. 131-156) and index.