00941nam0-2200289---450-99000917259040332120100414115918.0000917259FED01000917259(Aleph)000917259FED0100091725920100414d1975----km-y0itay50------baengUSa-------001yy<<An >>evaluation of air quality monitoring techniques utilized by an upper midwestern regional power systemDavid Walter Hoffman[Minneapolis][s.n.]1975IX, 155 p.ill.21 cmInquinamentoHoffman,David Walter507440ITUNINARICAUNIMARCBK990009172590403321IG 15 F 302098DMIGIDMIGIEvaluation of air quality monitoring techniques utilized by an upper midwestern regional power system780782UNINA