APA (7 वां संस्करण) प्रशस्ति पत्र

Mitford, N., & Law, J. (1973). Frederick the Great: Nancy Mitford. Picture research by Joy Law. Penguin Books.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Mitford, Nancy, और Joy Law. Frederick the Great: Nancy Mitford. Picture Research by Joy Law. Harmondsworth, Middlesex, England: Penguin Books, 1973.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Mitford, Nancy, और Joy Law. Frederick the Great: Nancy Mitford. Picture Research by Joy Law. Penguin Books, 1973.