Ostring, P. (2008). Profit focussed supplier management. Prentice Hall of India.
Čikaški stil citiranjaOstring, Pirkko. Profit Focussed Supplier Management. New Delhi: Prentice Hall of India, 2008.
MLA način citiranjaOstring, Pirkko. Profit Focussed Supplier Management. Prentice Hall of India, 2008.
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