1. ACGIH. 1996. Documentation of threshold limit values for beryllium and compounds. Cincinnati, OH: American Conference of Governmental Industrial Hygenists.
2. ACGIH. 2001. Documentation of threshold limit values for beryllium and compounds. Cincinnati, OH: American Conference of Governmental Industrial Hygenists.
3. ACGIH. 2008. Draft Documentation of threshold limit values for beryllium and compounds. Cincinnati, OH: American Conference of Governmen tal Industrial Hygenists.
4. Chemical carcinogenesis: too many rodent carcinogens.