ebrary, Inc, & Opelt, A. (2013). Agile contracts: Creating and managing successful projects with Scrum. Wiley.
芝加哥风格引文ebrary, Inc, 与 Andreas Opelt. Agile Contracts: Creating and Managing Successful Projects with Scrum. Hoboken, N.J.: Wiley, 2013.
MLA引文ebrary, Inc, 与 Andreas Opelt. Agile Contracts: Creating and Managing Successful Projects with Scrum. Wiley, 2013.
警告：这些引文格式不一定是100％准确.