APA (7 वां संस्करण) प्रशस्ति पत्र

Fraser, J. T. (2007). Time and time again: Reports from a boundary of the universe. Brill.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Fraser, J. T. Time and Time Again: Reports from a Boundary of the Universe. Leiden ; Boston: Brill, 2007.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Fraser, J. T. Time and Time Again: Reports from a Boundary of the Universe. Brill, 2007.