Richter, J. (2010). Threshold. Crab Orchard Review : Southern Illinois University Press.
Cita Chicago (17th ed.)Richter, Jennifer. Threshold. Carbondale: Crab Orchard Review : Southern Illinois University Press, 2010.
Cita MLA (9th ed.)Richter, Jennifer. Threshold. Crab Orchard Review : Southern Illinois University Press, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.