ProQuest Government Periodicals Index is an index of over 300 of the most important periodicals published by agencies and departments of the United States Federal government, with indexing dating from 1988 - present. These periodicals are in areas such as agriculture, education, the environment, law, medicine, the military, and more. For most articles, the database does not contain the full text of the article; instead, it provides a citation which you can then use to locate the full text of the article.