Gaya APA
Scheuing, Eberhard E.. (1989).
Purchasing Management .
New Jersey:
Prentice Hall.
Gaya Chicago
Scheuing, Eberhard E..
Purchasing Management.
New Jersey:
Prentice Hall,
1989.
Teks.
Gaya MLA
Scheuing, Eberhard E..
Purchasing Management.
New Jersey:
Prentice Hall,
1989.
Teks.
Gaya Turabian
Scheuing, Eberhard E..
Purchasing Management.
New Jersey:
Prentice Hall,
1989.
Teks.