Heinritz, S. (1986). Purchasing principle and applications (7th edition.). Prentice Hall.
芝加哥风格引文Heinritz, Stuart. Purchasing Principle and Applications. 7th edition. United states of America: Prentice Hall, 1986.
MLA引文Heinritz, Stuart. Purchasing Principle and Applications. 7th edition. Prentice Hall, 1986.
警告：这些引文格式不一定是100％准确.