ebrary, Inc, Walters, D., & Rainbird, M. (2004). The value chain. Emerald Group Pub..
芝加哥风格引文ebrary, Inc, David Walters, 与 Mark Rainbird. The Value Chain. [Bradford, England]: Emerald Group Pub., 2004.
MLA引文ebrary, Inc, et al. The Value Chain. Emerald Group Pub., 2004.
警告：这些引文格式不一定是100％准确.