Title from title screen (viewed on April 7, 2006).
"November 2004."
System Details
Mode of access: Internet from the CSB web site. Address as of 4/7/06: http://www.csb.gov/safety%5Fpublications/docs/SodiumHydrosulfideBulletin.pdf; current access is available via PURL.
Bibliography
Includes bibliographical references (pages 15-16).