American Conference of Governmental Industrial Hygienists. (2011). 2011 [i.e. Two thousand eleven] TLVs and BEIs: Based on the Documentation of the Threshold Limit Values for Chemical Substances and Physical Agents & Biological Exposure Indices. Ohio: Signature Publications.
Citación estilo ChicagoAmerican Conference of Governmental Industrial Hygienists. 2011 [i.e. Two Thousand Eleven] TLVs and BEIs: Based On the Documentation of the Threshold Limit Values for Chemical Substances and Physical Agents & Biological Exposure Indices. Ohio: Signature Publications, 2011.
Cita MLAAmerican Conference of Governmental Industrial Hygienists. 2011 [i.e. Two Thousand Eleven] TLVs and BEIs: Based On the Documentation of the Threshold Limit Values for Chemical Substances and Physical Agents & Biological Exposure Indices. Ohio: Signature Publications, 2011.