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
Ecological Indicators. Proceedings of an International Symposium. Held in Fort Lauderdale, Florida on October 16-19, 1990. McKenzie, D. H; Hyatt, D. E; McDonald, V. J.	PB92114131	1991	2692 pages
Endpoints and Indicators in Ecological Risk Assessments. Gentile, J. H; Slimak, M. W.	PB94130150	1993	18 pages
Environmental Monitoring and Assessment Program (EMAP) Cumulative Bibliography. Lear, J. S; Chapman, C. B.	PB95177382	1994	40 pages
EPA PUBLICATIONS BIBLIOGRAPHY: QUARTERLY ABSTRACT BULLETIN. April-June 1994.	PB94904202	1994	140 pages