Geography: geospatial and environmental analysis: Recommended

The GeoRef database includes references to all publications of the U.S. Geological Survey. Masters' theses and doctoral dissertations from US and Canadian universities are also covered.

To maintain the database, GeoRef editor/indexers regularly scan more than 3,500 journals in 40 languages as well as new books, maps, and reports. They record the bibliographic data for each document and assign index terms to describe it. Each month between 4,000 and 7,000 new references are added to the database.

ProQuest Deep Indexing: Earth Sciences supplements GeoRef with access to deep indexing for tables, figures, graphs, charts and other illustrations from the scholarly research and technical literature for selected records. Records from the database appear with searches of GeoRef to provide an additional path for discovery.

Environment Complete contains more than 1,957,000 records from more than 1,700 domestic and international titles going back to the 1940s (including 1,125 active core titles) as well as more than 120 monographs. The database also contains full text for more than 680 journals, including many of the most used journals in the discipline, such as Environment (back to 1975), Ecologist, Conservation Biology, etc. Additionally, Environment Complete provides full text for 120 monographs, such as Encyclopedia of World Environmental History (3 volumes), Advances in Water Treatment & Environmental Management, etc.