APA (7th ed.) Citation

LeBlond Group & LeBlond, G. T. (1989). dBASE IV: The complete reference. Osborne McGraw-Hill.

Chicago Style (17th ed.) Citation

LeBlond Group and Geoffrey T. LeBlond. DBASE IV: The Complete Reference. Berkeley, Calif.: Osborne McGraw-Hill, 1989.

MLA (9th ed.) Citation

LeBlond Group and Geoffrey T. LeBlond. DBASE IV: The Complete Reference. Osborne McGraw-Hill, 1989.