APA Style
Purchasing : principles and applications. (1981).
Englewood Cliffs:
Prentice-Hall.
Chicago Style
Purchasing : principles and applications.
6th ed..
Englewood Cliffs:
Prentice-Hall,
1981.
.
MLA Style
Purchasing : principles and applications.
6th ed..
Englewood Cliffs:
Prentice-Hall,
1981.
.
Turabian Style
Purchasing : principles and applications.
Englewood Cliffs:
Prentice-Hall,
1981.
.