Grady, J. O. (2006). System requirements analysis. Elsevier Academic Press.
芝加哥风格引文Grady, Jeffrey O. System Requirements Analysis. Amsterdam ; Boston: Elsevier Academic Press, 2006.
MLA引文Grady, Jeffrey O. System Requirements Analysis. Elsevier Academic Press, 2006.
警告：这些引文格式不一定是100％准确.