Description
Item Description:Distributed to depository libraries in microfiche.
Description based on: 1994.
Paper version available from: Center for Environmental Research Information, Cincinnati, OH 45268.
Microform.
Physical Description:volumes : illustrations ; 28 cm.
Some issues also available via Internet from the EPA web site (PDF files only) Address as of 10/10/00: http://www.epa.gov/ORD/publications/ordpubs.html; current access is available via PURL.
Publication Frequency:Annual