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	Download
Hydrocarbon Vapor Diffusion in Intact Core Sleeves. Ostendorf, D. W; Moyer, E. E; Xie, Y; Rajan, R. V.	PB93181204	1993	14 pages
Biodegradation of Hydrocarbon Vapors in the Unsaturated Zone. Ostendorf, D. W; Kampbell, D. H.	PB91196642	1991	12 pages