APA (7th ed.) Citation

(1994). Lernprogramme: [Shareware CD-ROM]. PS Computer-Vertriebs-GmbH.

Chicago Style (17th ed.) Citation

Lernprogramme: [Shareware CD-ROM]. s.l: PS Computer-Vertriebs-GmbH, 1994.

MLA (9th ed.) Citation

Lernprogramme: [Shareware CD-ROM]. PS Computer-Vertriebs-GmbH, 1994.

Warning: These citations may not always be 100% accurate.