Leffingwell, D. (2000). Managing software requirements. Addison-Wesley.
Chicago Style (17th ed.) CitationLeffingwell, Dean. Managing Software Requirements. Addison-Wesley, 2000.
MLA引文Leffingwell, Dean. Managing Software Requirements. Addison-Wesley, 2000.
警告：這些引文格式不一定是100％准確.