APA (7th ed.) Citation

Bürger, E., & Wittmar, G. (1969). Was ist, was soll Datenverarbeitung. Urania-Verl.

Chicago Style (17th ed.) Citation

Bürger, Erich, and Gerhard Wittmar. Was Ist, Was Soll Datenverarbeitung. Leipzig, Jena, Berlin: Urania-Verl, 1969.

MLA (9th ed.) Citation

Bürger, Erich, and Gerhard Wittmar. Was Ist, Was Soll Datenverarbeitung. Urania-Verl, 1969.