1. Guidelines for a NIOSH policy on occupational carcinogenesis;Fairchild;Annals of the New York Academy of Sciences,1976
2. Recommendations for Occupational Safety and Health: Compendium of Policy Documents and Statements,1992
3. Occupational toxicology;Thorne,2008
4. http://www.cdc.gov/niosh/npg/ – CDC: NIOSH Pocket Guide to Chemical Hazards
5. http://www.cdc.gov/niosh/topics/cancer/policy.html – CDC: NIOSH Evaluation of its Cancer and REL Policies