Lists reference sources available at the Library of Congress. Includes an introduction to finding information in the Library and details on researching particular companies. Listings are categorized into: frequently used sources; service industries; securities and investment; small business; accounting; international trade; doing business overseas; regional economic information; economic statistics; non-profit organizations and trade associations; business history; federal budget and expenditures; and business education and vocational guidance. Also includes a listing of useful addresses and telephone numbers. Index.