Cincinnati, Ohio : Industrial Environmental Research Laboratory, Office of Research and Development, Environmental Protection Agency ; Springfield, Va. : available through the National Technical Information Service,
Cincinnati, Ohio : Industrial Environmental Research Laboratory, Office of Research and Development, Environmental Research Laboratory ; Springfield, Va. : available through the National Technical Information Service,
Cincinnati, Ohio : Environmental Protection Agency, Office of Research and Development, Industrial Environmental Research Laboratory ; Springfield, Va. : for sale by the National Technical Information Service,
Cincinnati : U.S. Environmental Protection Agency, Industrial Environmental Research Laboratory ; Springfield, Va. : Available through National Technical Information Service,
Cincinnati, Ohio : Environmental Protection Agency, Office of Research and Development, Industrial Environmental Research Laboratory ; Springfield, Va. : for sale by the National Technical Information Service,
Cincinnati, Ohio : Environmental Protection Agency , Office of Research and Development, Industrial Environmental Research Laboratory ; Springfield, Va. : for sale by the National Technical Information Service,
Cincinnati, Ohio : Environmental Protection Agency, Office of Research and Development, Industrial Environmental Research Laboratory ; Springfield, Va. : for sale by the National Technical Information Service,
Cincinnati, Ohio : Environmental Protection Agency, Office of Research and Development, Industrial Environmental Research Laboratory ; Springfield, Va. : for sale by the National Technical Information Service,
Cincinnati, Ohio : Environmental Protection Agency, Office of Research and Development, Industrial Environmental Research Laboratory ; Springfield, Va. : for sale by the National Technical Information Service,