Layriz, O. (1973). Mechanical traction in war. David & Charles Reprints.
芝加哥风格引文Layriz, Otfried. Mechanical Traction in War. Newton Abbot, Devon: David & Charles Reprints, 1973.
MLA引文Layriz, Otfried. Mechanical Traction in War. David & Charles Reprints, 1973.
警告：这些引文格式不一定是100％准确.