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
Drilling Mud Assessment Chemical Analysis Reference Volume.	PB84170000	1984	278 pages
Results of the Drilling Fluids Research Program Sponsored by the Gulf Breeze Environmental Research Laboratory, 1976-1984, and Their Application to Hazard Assessment. Duke, T. W; Parrish, P. R.	PB84223072	1984	198 pages
Subsurface Characterization and Monitoring Techniques: A Desk Reference Guide. Volume 1. Solids and Ground Water Appendices A and B.	PB94136272	1993	496 pages