Citazione Stile APA (7a Edizione)

Grupe, F. H. (1989). Microcomputer applications: Using wordperfect, lotus -- and dBASE III plus. Wm. C. Brown Publishers.

Citazione stile Chigago Style (17a edizione)

Grupe, Fritz H. Microcomputer Applications: Using Wordperfect, Lotus -- and DBASE III Plus. Iowa: Wm. C. Brown Publishers, 1989.

Citatione MLA (9a ed.)

Grupe, Fritz H. Microcomputer Applications: Using Wordperfect, Lotus -- and DBASE III Plus. Wm. C. Brown Publishers, 1989.