APA-viite (7. p.)
Doran, J. P. (2013). Getting started with UDK: Build a complete tower defense game from scratch using the Unreal Development Kit. Packt Pub..
Chicago-viite (17. p.)
Doran, John P. Getting Started with UDK: Build a Complete Tower Defense Game from Scratch Using the Unreal Development Kit. Birmingham: Packt Pub., 2013.
MLA-viite (9. p.)
Doran, John P. Getting Started with UDK: Build a Complete Tower Defense Game from Scratch Using the Unreal Development Kit. Packt Pub., 2013.
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