prepared by SIGMA Research, Inc., cosponsored by Electric Power Research Institute, Energy Analysis and Environment Division and United States Environmental Protection Agency, Environmental Research Laboratory, Corvallis ; prepared for Electric Power Research Institute
prepared by Illinois Institute of Natural Resources, Illinois Natural History Survey ; principal investigators, R.W. Larimore, J.M. McNurney ... [and others] ; prepared for Electric Power Research Institute
prepared by Illinois Natural History Survey, Illinois Institute of Natural Resources, Aquatic Biology Section ; principal investigator, D.P. Philipp ; University of Illinois, Department of Genetics and Development, Department of Animal Science ; principal investigators, W.F. Childers, G.S. Whitt ; prepared for Electric Power Research Institute