Heinritz, S. (1986). Purchasing principle and applications (7th edition.). Prentice Hall.
Chicago Style (17th ed.) CitationHeinritz, Stuart. Purchasing Principle and Applications. 7th edition. United states of America: Prentice Hall, 1986.
MLA (9th ed.) CitationHeinritz, Stuart. Purchasing Principle and Applications. 7th edition. Prentice Hall, 1986.
Warning: These citations may not always be 100% accurate.