American Conference of Governmental Industrial Hygienists. (1995). Threshold limit values (TLVs): For chemical substances and physical agents y, biological exposure indices (BEIs) (6th ed.). ACGIH.
Cita Chicago Style (17a ed.)American Conference of Governmental Industrial Hygienists. Threshold Limit Values (TLVs): For Chemical Substances and Physical Agents Y, Biological Exposure Indices (BEIs). 6th ed. Cincinnati: ACGIH, 1995.
Cita MLA (8a ed.)American Conference of Governmental Industrial Hygienists. Threshold Limit Values (TLVs): For Chemical Substances and Physical Agents Y, Biological Exposure Indices (BEIs). 6th ed. ACGIH, 1995.
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