MLA

Finch, Andrew. The Unreal Game Engine : a Comprehensive Guide to Creating Playable Levels. S.l.: 3DTotal Publishing, 2013.

APA

Finch, A. (2013). The Unreal game engine : a comprehensive guide to creating playable levels. S.l.: 3DTotal Publishing.

Chicago

Finch, Andrew, The Unreal Game Engine: A Comprehensive Guide to Creating Playable Levels. S.l.: 3DTotal Publishing, 2013.