Background information on a topic can often be found in encyclopedias, dictionaries, and other reference sources. Reference sources provide background information on a topic, clarify definitions, and often include bibliographies which cite books and journal articles.
Books can be a good place to find an overview of a topic. References to journal articles and books can often be found in a bibliography at the end of a chapter. Since journal articles are often more focused than books, they may provide more specific information than books. References to additional articles and books can often be found in a bibliography at the end of an article.
Search articles from a database of scholarly journals and other trusted periodicals. Best for academic research.
Full text for about 8,500 periodicals including over 7,300 peer-reviewed journals across most areas of academic study as well as indexing and abstracts for more than 12,500 magazines and journals. Coverage is from 1887 to the present.
Search bibliographic records from the U.S. Department of Agriculture's National Agricultural Library, which includes millions of citations relating to the field of agriculture. Citations are comprised of journal articles, book chapters, theses, patents, software, audiovisual materials and technical reports to support agricultural research.
Search for information about environmental issues with diverse perspectives from the scientific community, policymakers, and corporate interests.