References and selected abstracts to the world's literature in geology, covering North America since 1669 and other areas since 1933.
The Government Printing Office's official web portal, providing an entry point to federal government publications available online. Formerly known as FDSys.
Provides citations of government publications, with links to full text where available.
Provides citations and abstracts of scholarly and general interest titles, government documents and reports related to the relationship between human beings and the environment.
Provides in-depth articles containing biographies as well as thematic entries on architecture, ceramics, metalwork, mosaics, painting and sculpture.