APA (7th ed.) Citation

Hergert, D. (1987). dBASE III PLUS: The Microsoft reference guide to all commands, functions, and features. Microsoft Press.

Chicago Style (17th ed.) Citation

Hergert, Douglas. DBASE III PLUS: The Microsoft Reference Guide to All Commands, Functions, and Features. Redmond, Wash.: Microsoft Press, 1987.

MLA (9th ed.) Citation

Hergert, Douglas. DBASE III PLUS: The Microsoft Reference Guide to All Commands, Functions, and Features. Microsoft Press, 1987.