Gaya APA

Ashton-Tate, . (--). dBASE IV Version 1.1 : Advancing The Worldwide Standard In Data Management And Application Development. (--). : Ashton-Tate.

Gaya MLA

Ashton-Tate, . "dBASE IV Version 1.1 : Advancing The Worldwide Standard In Data Management And Application Development.". -- : Ashton-Tate, --. Text.