Liskin, M. (1989). dBase IV made easy. Osborne/McGraw-Hill.
Cita Chicago (17th ed.)Liskin, Miriam. DBase IV Made Easy. Berkeley, Calif: Osborne/McGraw-Hill, 1989.
Cita MLA (9th ed.)Liskin, Miriam. DBase IV Made Easy. Osborne/McGraw-Hill, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.