Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.