Description
Published:Began with v. 1, no. 1 (1Q2005).
Item Description:Description based on: volume 1, number 1 (1Q2005); title from title screen (viewed on Aug. 28, 2009).
Latest issue consulted: Summer 2009.
Electronic resource.
Physical Description:electronic text, volumes : HTML, digital, PDF file.
Publication Frequency:Quarterly
Format:Mode of access: Internet at the NETL web site. Address as of 8/28/09: http://www.netl.doe.gov/technologies/oil-gas/ReferenceShelf/epfocus.html ; current access available via PURL.