http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Reissue of I10-V-05, measuring methane levels at underground coal mines using belt air to ventilate working sections
Measuring methane levels at underground coal mines using belt air to ventilate working sections
Title from subject line (viewed on July 16, 2013).
"Effective Date: 05/22/2012, Expiration Date: 03/31/2014."
Procedure instruction letter ; no. I12-V-16