Emanuel, S., Knowles, S., & Goldberg, S. (1993). Contracts (5th ed.). Emanuel Pub. Corp.
芝加哥风格引文Emanuel, Steven, Steven Knowles, 与 Stephen Goldberg. Contracts. 5th ed. Larchmont, N.Y: Emanuel Pub. Corp, 1993.
MLA引文Emanuel, Steven, et al. Contracts. 5th ed. Emanuel Pub. Corp, 1993.
警告：这些引文格式不一定是100％准确.