Penfield, P. (2010). A Primer on Negotiating Corporate Purchase Contracts. Business Expert Press.
Παραπομπή Chicago StylePenfield, Patrick. A Primer On Negotiating Corporate Purchase Contracts. Business Expert Press, 2010.
Παραπομπή MLAPenfield, Patrick. A Primer On Negotiating Corporate Purchase Contracts. Business Expert Press, 2010.
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