Style de citation APA (7e éd.)

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

Style de citation Chicago (17e éd.)

Cossio, Alexander, et Milton Erre. Skating for the Sky. Medellín, Colombia: [publisher not identified], 2016.

Style de citation MLA (9e éd.)

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