Provides bibliographic citations to scientific literature covering a wide variety of water-related topics.

Conservation Effects Assessment Project (CEAP)

See information about, and related to, U.S. Department of Agriculture's Conservation Effects Assessment Project (CEAP).

EPA National Service Center for Environmental Publications

Environmental Protection Agency.

Provides access to EPA publications.

Water Resources Publications

U. S. Geological Survey.

Provides access to water publications from the U. S. Geological Survey.