American Conference of Governmental Industrial Hygienists. (2012). 2012 [i.e. Two thousand twelve] TLVs and BEIs: Based on the Documentation of the Threshold Limit Values for Chemical Substances and Physical Agents & Biological Exposure Indices. Ohio: Signature Publications.
Chicago Style CitationAmerican Conference of Governmental Industrial Hygienists. 2012 [i.e. Two Thousand Twelve] TLVs and BEIs: Based On the Documentation of the Threshold Limit Values for Chemical Substances and Physical Agents & Biological Exposure Indices. Ohio: Signature Publications, 2012.
MLA CitationAmerican Conference of Governmental Industrial Hygienists. 2012 [i.e. Two Thousand Twelve] TLVs and BEIs: Based On the Documentation of the Threshold Limit Values for Chemical Substances and Physical Agents & Biological Exposure Indices. Ohio: Signature Publications, 2012.