Bray, I. K. (2002). An introduction to requirements engineering. Addison-Wesley.
芝加哥风格引文Bray, Ian K. An Introduction to Requirements Engineering. Harlow: Addison-Wesley, 2002.
MLA引文Bray, Ian K. An Introduction to Requirements Engineering. Addison-Wesley, 2002.
警告：这些引文格式不一定是100％准确.