APA (7 वां संस्करण) प्रशस्ति पत्र

Perry, M., & Bock, G. W. (2016). Western civilization: A brief history (Eleventh edition.). Wadsworth Cengage Learning.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Perry, Marvin, और George W. Bock. Western Civilization: A Brief History. Eleventh edition. Australia: Wadsworth Cengage Learning, 2016.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Perry, Marvin, और George W. Bock. Western Civilization: A Brief History. Eleventh edition. Wadsworth Cengage Learning, 2016.