Cita APA (7th ed.)
Finney, J. (1970). Time and again. Simon and schuster.
Cita Chicago (17th ed.)
Finney, Jack. Time and Again. New York: Simon and schuster, 1970.
Cita MLA (9th ed.)
Finney, Jack. Time and Again. Simon and schuster, 1970.
Atenció: Aquestes cites poden no estar 100% correctes.