Both Westlaw and Lexis allow subscribers to locate documents using various search and browse methods. If you have the citation for a document, such as a court case or statute, you can enter the number and quickly call up the document. If you do not know the citation number, you can search according to legal topic, by case or party name, or by publication. If you do not know the best search terms to use for a particular search, both services will suggest terms to use. In both, you can search multiple sources simultaneously, and you can sort results by source type (cases, statutes and regulations, and law reviews and journals). In addition to using the search methods just described, you can locate documents with Westlaw using two different browsing methods. Westlaw's "Table of Contents" organizes the federal, state, and municipal laws of several countries into submenus, including both primary and secondary sources of law. Westlaw also allows you to browse a directory of laws, practice areas, periodicals, public records, news, and many other topics and subtopics arranged hierarchically into menus.