Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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

Atenció: Aquestes cites poden no estar 100% correctes.