Harris, R. W. (1993). DOS, WordPerfect and Lotus office companion (3rd ed.). Chapel Hill, NC.: Ventana Press.
Παραπομπή Chicago StyleHarris, Robert W. DOS, WordPerfect and Lotus Office Companion. 3rd ed. Chapel Hill, NC.: Ventana Press, 1993.
Παραπομπή MLAHarris, Robert W. DOS, WordPerfect and Lotus Office Companion. 3rd ed. Chapel Hill, NC.: Ventana Press, 1993.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.