http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Optical properties and visual effects of smoke-stack plumes
a cooperative study: Edison Electric Institute and U.S. Public Health Service
Environmental Portection Agency Office of Air Programs
[by] William D. Conner [and] J. Raymond Hodkinson.
Office of Air Programs publication ; no. AP-30