http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Quality assurance handbook for air pollution measurement systems
Environmental Monitoring Systems Laboratory (Research Triangle Park, N.C.)
volumes (loose-leaf) : illustrations ; 28 cm.
v. 1. Principles -- v. 2. Ambient air specific methods -- v. 3. Stationary source specific methods.
Volume I prepared by Quality Assurance Division of Environmental Protectection Agency in cooperation with PEDCO-Environmental, Inc.
Volume I revised Jan. 9, 1984; Volume II rev. Dec. 30, 1981; Vol. III rev. Jan. 4, 1982.