Jeffrey M. Syken. (2002). Principles of trade estimating. Building News.
芝加哥风格引文Jeffrey M. Syken. Principles of Trade Estimating. Los Angeles: Building News, 2002.
MLA引文Jeffrey M. Syken. Principles of Trade Estimating. Building News, 2002.
警告：这些引文格式不一定是100％准确.