Cita APA (7a ed.)

Cossio, A., Erre, M., Álvarez, L. A., & Díaz, R. (2016). Skating for the sky. [publisher not identified].

Cita Chicago Style (17a ed.)

Cossio, Alexander, Milton Erre, Luz Amaro Álvarez, y Robinson Díaz. Skating for the Sky. Medellín, Colombia: [publisher not identified], 2016.

Cita MLA (8a ed.)

Cossio, Alexander, et al. Skating for the Sky. [publisher not identified], 2016.