Doran, J. P. (2013). Getting started with UDK: Build a complete tower defense game from scratch using the Unreal Development Kit. Packt Pub..
芝加哥风格引文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引文Doran, John P. Getting Started with UDK: Build a Complete Tower Defense Game from Scratch Using the Unreal Development Kit. Packt Pub., 2013.
警告：这些引文格式不一定是100％准确.