Cita APA (7a ed.)

Harari, D., Mollerach, S., & Roulet, E. (1999). The toes of the ultra high energy cosmic ray spectrum.

Cita Chicago Style (17a ed.)

Harari, Diego, Silvia Mollerach, y Esteban Roulet. The Toes of the Ultra High Energy Cosmic Ray Spectrum. 1999.

Cita MLA (8a ed.)

Harari, Diego, et al. The Toes of the Ultra High Energy Cosmic Ray Spectrum. 1999.