APA (7 वां संस्करण) प्रशस्ति पत्र

Bahr, G. E. Roundheads and peakheads: the truth about evil times: Gisela E. Bahr. Essays on Brecht : theater and politics.(1974).

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Bahr, Gisela E. "Roundheads and Peakheads: The Truth About Evil Times: Gisela E. Bahr." Essays on Brecht : Theater and Politics.(1974) .

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Bahr, Gisela E. "Roundheads and Peakheads: The Truth About Evil Times: Gisela E. Bahr." Essays on Brecht : Theater and Politics.(1974), .