APA (7th ed.) Citation

dBASE. (1987). Learning dBASE III plus: Version 1.10. dBASE.

Chicago Style (17th ed.) Citation

dBASE. Learning DBASE III Plus: Version 1.10. [Place of publication not identified: dBASE, 1987.

MLA (8th ed.) Citation

dBASE. Learning DBASE III Plus: Version 1.10. dBASE, 1987.