Cita APA (7th ed.)
Yampolsky, M., Berler, S., Poniatowska, E., & Reyes Palma, F. The Edge of Time. University of Texas.
Cita Chicago (17th ed.)
Yampolsky, Mariana, Sandra Berler, Elena Poniatowska, i Francisco Reyes Palma. The Edge of Time. Austin, EUA: University of Texas.
Cita MLA (9th ed.)
Yampolsky, Mariana, et al. The Edge of Time. University of Texas.
Atenció: Aquestes cites poden no estar 100% correctes.