एपीए उद्धरण

Wirtz, B. W. (2020). Digital Business Models. 1st ed. Springer International Publishing.

शिकागो स्टाइल उद्धरण

Wirtz, Bernd W. Digital Business Models. 1st Ed. Springer International Publishing, 2020.

एमएलए उद्धरण

Wirtz, Bernd W. Digital Business Models. 1st Ed. Springer International Publishing, 2020.