Coalbed methane extra.

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Bibliographic Details
Imprint:Washington, DC : U.S. Environmental Protection Agency, Air and Radiation
Description:volumes : digital, PDF file
Language:English
Subject:
Format: E-Resource U.S. Federal Government Document Journal
URL for this record:http://pi.lib.uchicago.edu/1001/cat/bib/6808775
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Other authors / contributors:United States. Environmental Protection Agency. Office of Air and Radiation.
Frequency:Quarterly
Notes:Description based on: Jan. 1998; title from PDF caption (viewed on: Sept. 17, 2006).
Mode of access: Internet at the GPO permanent access web site. Address as of 9/17/07: http://permanent.access.gpo.gov/lps85447/ ; current access is available via PURL.
GPO item no.:0483-E-35 (online)
Govt.docs classification:EP 4.35: