prepared by Fluor Daniel, Inc. ; principal investigators, A. D. Rao ... [and others] ; United Technologies ; principal investigators, J. Kana, G. Perkins, D. Podolski ; Texaco Inc
prepared by The Pennsylvania State University, College of Earth and Mineral Sciences, Department of Mineral Engineering ; principal investigators, L.G. Austin ... [et al.]
prepared by Atmospheric Chemistry Branch, Applied Sciences Laboratory, Engineering Experiment Station, Georgia Institute of Technology ; Douglas. D. Davis