APA (7 वां संस्करण) प्रशस्ति पत्र

Pontbriand, C. (2018). Telegrafenexperimente. Was wissen wir? Was haben wir? Was fehlt uns? Was lieben wir?.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Pontbriand, Chantal. "Telegrafenexperimente." Was Wissen Wir? Was Haben Wir? Was Fehlt Uns? Was Lieben Wir? 2018.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Pontbriand, Chantal. "Telegrafenexperimente." Was Wissen Wir? Was Haben Wir? Was Fehlt Uns? Was Lieben Wir?, 2018.