Visual dBase 5.5 for Windows / Biegel, Richard A. Pendharkar, Sumant S. Database management. 005 GLE 1997 A004 Or. Includes index. New York : Glencoe/McGraw₋Hill, c1997. c1997. Text vii, 354 p : http://www.loc.gov/catdir/description/mh031/95048342.html http://www.loc.gov/catdir/toc/mh031/95048342.html