1. American Conference of Governmental Industrial Hygienists (1971): Documentation of the Threshold Limit Values for Substances in Workroom Air, 3rd Ed. Cincinnati: ACGIH.
2. American Conference of Governmental Industrial Hygienists (1980): Documentation of the Threshold Limit Values, 4th Ed. Cincinnati: ACGIH.
3. American Conference of Governmental Industrial Hygienists (1986): Documentation of the Threshold Limit Values and Biological Exposure Indices, 5th Ed. Cincinnati: ACGIH.
4. American Conference of Governmental Industrial Hygienists (1972): TLV's Threshold Limit Values for Chemical Substances and Physical Agents in the Workroom Environment With Intended Changes for 1972. Cincinnati: ACGIH.
5. American Conference of Governmental Industrial Hygienists (ACGIH) (1974): TLVs Threshold Limit Values for Chemical Substances and Physical Agents in the Workroom Environment With Intended Changes for 1974. Cincinnati: ACGIH.