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.

Advanced Search

Enter search here
Only documents with full text

Only documents with full text

Fields

Select Field Select FieldSelect Field

Enter field filter here

Date Published

From Year From YearFrom Year TO To Year To YearTo Year

Refine

Search Results

Global FilterFilter Search

Sort By: Sort By:

Sort Order: Sort Order: Sort Order:

Title/Authors	Accession Number	Publication Year	Page Count
Analysis of Acid Precipitation Samples Collected by State Agencies Sampling Period: January-December 1992. Shepard, L. S.	PB95191342	1995	255 pages
Analysis of Acid Precipitation Samples Collected by State Agencies. Sampling Period: January-December 1991. Shepard, L. S.	PB96175096	1996	260 pages
Analysis of Acid Precipitation Samples Collected by State Agencies. Sampling Period: January-December 1993. Shepard, L. S.	PB96175245	1996	255 pages