APA (7 वां संस्करण) प्रशस्ति पत्र

Davies, P. C. W. (1980). Other worlds: A portrait of nature in rebellion, space, superspace, and the quantum universe. Simon and Schuster.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Davies, P. C. W. Other Worlds: A Portrait of Nature in Rebellion, Space, Superspace, and the Quantum Universe. New York: Simon and Schuster, 1980.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Davies, P. C. W. Other Worlds: A Portrait of Nature in Rebellion, Space, Superspace, and the Quantum Universe. Simon and Schuster, 1980.