APA-viite (7. p.)

Heinritz, S. F. (1991). Purchasing: Principles and applications (8th ed.). Prentice Hall.

Chicago-viite (17. p.)

Heinritz, Stuart F. Purchasing: Principles and Applications. 8th ed. Englewood Cliffs, N.J: Prentice Hall, 1991.

MLA-viite (9. p.)

Heinritz, Stuart F. Purchasing: Principles and Applications. 8th ed. Prentice Hall, 1991.