Hoare, C., Jifeng, H., & Friesen, O. (1987). Design and Proof of a Mail Service.
芝加哥风格引文Hoare, C., H. Jifeng, 与 O. Friesen. Design and Proof of a Mail Service. 1987.
MLA引文Hoare, C., et al. Design and Proof of a Mail Service. 1987.
警告：这些引文格式不一定是100％准确.