APA

Steve Dyson, .WordPerfect para Windows. Madrid, España : Osborn McGraw-Hill, 1993: .

Chicago

Steve Dyson, .WordPerfect para Windows. Madrid, España : Osborn McGraw-Hill, 1993: .

Harvard

Steve Dyson, .WordPerfect para Windows. Madrid, España : Osborn McGraw-Hill, 1993: .

MLA

Steve Dyson, .Madrid, España : Osborn McGraw-Hill, 1993: . .