Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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