Cliford, Michael J. dBASE III plus workbook and disk; learnings dBASE III; learning dBASE III plus by creating a saels analysis model / Michael J. Cliford - Indiana : Que TM Corporation , 1988 - xvii, 636p. : ill. ; 25 cm. Includes bibliographical references and index. Subjects--Topical Terms: Computers Dewey Class. No.: 510.79 / CLI