Gaya APA
Ballou, R, H. (2005).
Business logistics/ suplay chain management ed. 5 (5).
Danvers:
Pearson Prentice Hall International.
Gaya MLA
Ballou, Ronald, H.
"Business logistics/ suplay chain management ed. 5".
5
Danvers:
Pearson Prentice Hall International,
2005.
Text.