Carter, Roger, 1939- Using dBASE IV / Roger Carter - Oxford : Heinemann Newtech, 1990 - 351 p. : ill. ; 22 cm - Step-by-step (Heinemann Library) . ISBN: 0434902519 Nat. Bib. No.: GB 90-14079 Subjects--Uniform Titles: dBASE IV (Computer file) LC Class. No.: QA 76.9 / .D3C3 Dewey Class. No.: 005.74