U.S. Environmental Protection AgencyOffice of Research and Development, Center for Environmental Research Information, National Risk Management Research Laboratory,
Copyright Date:
1996
Description:
ii, 8 pages : illustrations ; 28 cm
Reproduction Info:
Microfiche. Washington, D.C. : U.S. Government Printing Office, 1998. 1 microfiche : negative.
This resource is supported by the Institute of Museum and Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.