MLA

Thorn, Alan, and Marc Schèarer. Pro Unity Game Development with C#. Apress, 2014.

APA

Thorn, A., & Schèarer, M. (2014). Pro Unity Game Development with C#. Apress.

Chicago

Thorn, Alan, Marc Schèarer, and Marc Schèarer. Pro Unity Game Development with C#. : Apress, 2014.