APA (7th ed.) Citation

(1988). dBase III Plus: Quick reference [version 1.10]. n.p.].

Chicago Style (17th ed.) Citation

DBase III Plus: Quick Reference [version 1.10]. [S.1.: n.p.], 1988.

MLA (9th ed.) Citation

DBase III Plus: Quick Reference [version 1.10]. n.p.], 1988.