National Technical Reports Library

The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.

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Title/Authors	Accession Number	Publication Year	Page Count
Environmental Factors Influencing Methanogenesis in a Shallow Anoxic Aquifer: A Field and Laboratory Study. Beeman, R. E; Suflita, J. M.	PB90245515	1990	15 pages
Ground-Water Research: Research Description, Third Edition.	PB2006100946	1992	74 pages
Wavelengths and Transition Probabilities for Atoms and Atomic Ions: Part I. Wavelengths, Part II. Transition Probabilities. Reader, J; Corliss, C. H; Wiese, W. L; Martin, G. A.	PB81206120	1980	412 pages
Tables of Spectral-Line Intensities. Part II. Arranged by Wavelengths. Second Edition. Meggers, W. F; Corliss, C. H; Scribner, B. F.	COM7510756	1975	234 pages
Tables of Spectral-Line Intensities. Part I. Arranged by Elements. Second Edition. Meggers, W. F; Corliss, C. H; Scribner, B. F.	COM7510755	1975	408 pages