prepared by Environmental Research & Technology, Inc. ; principal investigators, P.K. Mueller, G.M. Hidy ; with assistance from R.L. Baskett ... [and others] ; prepared for Electric Power Research Institute
sponsored by the Environmental Protection Agency, the National Center for Atmospheric Research, and Committee D-22 on Methods of Sampling and Analysis of Atmospheres, American Society for Testing and Materials, Boulder, Colo., 14-16 Aug. 1973